View source for Words from neighbour ones

{{Draft task}}

;Task:
Use the dictionary &nbsp; [https://web.archive.org/web/20180611003215/http://www.puzzlers.org/pub/wordlists/unixdict.txt unixdict.txt]

Ignore any word in the dictionary whose length is less than 9.


Let's take the words from next characters:
<br>1 <= n < (dictionary length) - 9.
<br>char1 = 1<sup>st</sup> character of &nbsp; &nbsp; &nbsp; &nbsp; n<sup>th</sup> &nbsp; word.
<br>char2 = 2<sup>nd</sup> character of &nbsp;(n+1)<sup>th</sup> &nbsp;word.
<br>char3 = 3<sup>rd</sup> character of &nbsp;(n+2)<sup>th</sup> &nbsp;word.
<br> &nbsp; &nbsp; <big> &#8942; </big>
<br>char9 = 9<sup>th</sup> character of &nbsp;(n+8)<sup>th</sup> &nbsp;word.


Concatenate (append) the nine characters by:
       ''newword'' = char1 + char2 + char3 + ... + char9 
<br>If &nbsp; ''newword'' &nbsp; is in the dictionary, then show on this page.

Length of &nbsp;''newword'' = 9


{{Template:Strings}}
<br><br>

=={{header|11l}}==
{{trans|Python}}

<syntaxhighlight lang="11l">V wordList = File(‘unixdict.txt’).read().split("\n")

V filteredWords = wordList.filter(chosenWord -> chosenWord.len >= 9)

L(word) filteredWords[0 .< (len)-9]
   V position = filteredWords.index(word)
   V newWord = (0..8).map(i -> :filteredWords[@position + i][i]).join(‘’)
   I newWord C filteredWords
      print(newWord)</syntaxhighlight>

{{out}}
<pre>
applicate
architect
astronomy
christine
christoph
committee
committee
committee
committee
committee
composite
constrict
constrict
construct
different
extensive
greenwood
implement
improvise
intercept
interpret
interrupt
interrupt
philosoph
prescript
receptive
telephone
transcend
transcend
transport
transpose
</pre>

=={{header|ALGOL 68}}==
<syntaxhighlight lang="algol68">
# find words where concatenating the nth character from this and the next 8  #
# words results in another word - only words of 9 or more characters are to  #
# be considered                                                              #
IF  FILE input file;
    STRING file name = "unixdict.txt";
    open( input file, file name, stand in channel ) /= 0
THEN
    # failed to open the file #
    print( ( "Unable to open """ + file name + """", newline ) )
ELSE
    # file opened OK #
    BOOL at eof := FALSE;
    # set the EOF handler for the file - notes eof has been reached and      #
    # returns TRUE so processing can continue                                #
    on logical file end( input file, ( REF FILE f )BOOL: at eof := TRUE );

    # table of possible words - there are around 8 000 9+ character words    #                                               
    [ 1 : 10 000 ]STRING words;                         # in unixdict.txt    #

    # in-place quick sort an array of strings                                #
    PROC s quicksort = ( REF[]STRING a, INT lb, ub )VOID:
         IF ub > lb
         THEN
            # more than one element, so must sort                            #
            INT  left  := lb;
            INT  right := ub;
            # choosing the middle element of the array as the pivot          #
            STRING pivot := a[ left + ( ( right + 1 ) - left ) OVER 2 ];
            WHILE
                WHILE IF left  <= ub THEN a[ left  ] < pivot ELSE FALSE FI
                DO
                    left  +:= 1
                OD;
                WHILE IF right >= lb THEN a[ right ] > pivot ELSE FALSE FI
                DO
                    right -:= 1
                OD;
                left <= right
            DO
                STRING t   := a[ left  ];
                a[ left  ] := a[ right ];
                a[ right ] := t;
                left      +:= 1;
                right     -:= 1
            OD;
            s quicksort( a, lb,   right );
            s quicksort( a, left, ub    )
         FI # s quicksort # ;

    # returns the length of s                                                #
    OP LENGTH = ( STRING s )INT: 1 + ( UPB s - LWB s );

    # returns TRUE if words[ low : high ] comntains s, FALSE otherwise       #
    PROC is word = ( STRING s, INT low, high )BOOL:
         IF   high < low THEN FALSE
         ELSE INT mid = ( low + high ) OVER 2;
              IF   words[ mid ] > s THEN is word( s, low,     mid - 1 )
              ELIF words[ mid ] = s THEN TRUE
              ELSE                       is word( s, mid + 1, high    )
              FI
         FI # is word # ;

    INT min length = 9;                 # minimum length of word to consider #
    INT w count   := 0;                        # store the 9 character words #
    WHILE
        STRING word;
        get( input file, ( word, newline ) );
        NOT at eof
    DO
        IF LENGTH word >= min length THEN
            words[ w count +:= 1 ] := word
        FI
    OD;
    close( input file );
    s quicksort( words, 1, w count );                       # sort the words #
    FOR i TO ( w count + 1 ) - min length DO       # find the required words #
        STRING c word   := words[ i ][ LWB words[ i ] ];
        INT w pos       := i;
        FOR c pos TO 8 DO
            STRING w = words[ w pos +:= 1 ];
            c word +:= w[ c pos + LWB words[ i ] ]
        OD;
        IF is word( c word, 1, w count ) THEN
            print( ( c word, newline ) )
        FI
    OD
FI
</syntaxhighlight>
{{out}}
<pre>
applicate
architect
astronomy
christine
christoph
committee
committee
committee
committee
committee
composite
constrict
constrict
construct
different
extensive
greenwood
implement
improvise
intercept
interpret
interrupt
interrupt
philosoph
prescript
receptive
telephone
transcend
transcend
transport
transpose
</pre>

=={{header|AppleScript}}==
===Core language===
<syntaxhighlight lang="applescript">on task()
    -- Since the task specifically involves unixdict.txt, this code's written in
    -- the knowlege that the words are on individual lines and in dictionary order.
    set dictPath to (path to desktop as text) & "unixdict.txt"
    script o
        property wordList : paragraphs of (read file dictPath as «class utf8»)
        property matches : {}
    end script
    -- Zap words with fewer than 9 characters and work with what's left.
    repeat with i from 1 to (count o's wordList)
        if ((count item i of o's wordList) < 9) then set item i of o's wordList to missing value
    end repeat
    set o's wordList to o's wordList's every text
    set wordListCount to (count o's wordList)
    set previousNewWord to missing value
    repeat with i from 1 to (wordListCount - 8)
        set newWord to character 1 of item i of o's wordList
        set j to (i - 1)
        repeat with k from 2 to 9
            set newWord to newWord & character k of item (j + k) of o's wordList
        end repeat
        -- Since wordList's known to be in dictionary order, a lot of time can be saved
        -- by only checking the necessary few words ahead for a match instead of
        -- using AppleScript's 'is in' or 'contains' commands, which check the entire list.
        if (newWord is not previousNewWord) then
            repeat with j from i to wordListCount
                set thisWord to item j of o's wordList
                if (newWord comes after thisWord) then
                else
                    if (newWord is thisWord) then set end of o's matches to newWord
                    exit repeat
                end if
            end repeat
            set previousNewWord to newWord
        end if
    end repeat
    
    return o's matches
end task

task()</syntaxhighlight>

{{output}}
<syntaxhighlight lang="applescript">{"applicate", "architect", "astronomy", "christine", "christoph", "committee", "composite", "constrict", "construct", "different", "extensive", "greenwood", "implement", "improvise", "intercept", "interpret", "interrupt", "philosoph", "prescript", "receptive", "telephone", "transcend", "transport", "transpose"}</syntaxhighlight>

===AppleScriptObjC===
Same output as above.
<syntaxhighlight lang="applescript">use AppleScript version "2.4" -- OS X 10.10 (Yosemite) or later
use framework "Foundation"
use scripting additions

on task()
    set |⌘| to current application
    set dictPath to (POSIX path of (path to desktop)) & "unixdict.txt"
    set dictText to |⌘|'s class "NSString"'s stringWithContentsOfFile:(dictPath) ¬
        usedEncoding:(missing value) |error|:(missing value)
    set newlineSet to |⌘|'s class "NSCharacterSet"'s newlineCharacterSet()
    set wordArray to dictText's componentsSeparatedByCharactersInSet:(newlineSet)
    -- Lose words with fewer than 9 characters.
    set filter to |⌘|'s class "NSPredicate"'s predicateWithFormat:("self MATCHES '.{9,}+'")
    set relevantWords to wordArray's filteredArrayUsingPredicate:(filter)
    
    -- Creating the new words is most easily and efficiently done with core AppleScript.
    script o
        property wordList : relevantWords as list
        property newWords : {}
    end script
    repeat with i from 1 to ((count o's wordList) - 8)
        set newWord to character 1 of item i of o's wordList
        set j to (i - 1)
        repeat with k from 2 to 9
            set newWord to newWord & character k of item (j + k) of o's wordList
        end repeat
        set end of o's newWords to newWord
    end repeat
    
    -- But Foundation sets are good for filtering the results.
    set matches to |⌘|'s class "NSMutableOrderedSet"'s orderedSetWithArray:(o's newWords)
    tell matches to intersectSet:(|⌘|'s class "NSSet"'s setWithArray:(relevantWords))
    
    return (matches's array()) as list
end task

task()</syntaxhighlight>

=={{header|Arturo}}==
{{trans|Nim}}
<syntaxhighlight lang="rebol">wordset: map read.lines relative "unixdict.txt" => strip
wordset: select wordset 'word -> 9 =< size word

lastWord: ""
newWord: "         "
count: 0

loop 0..(size wordset)-9 'i [
    loop 0..8 'j -> newWord\[j]: wordset\[i+j]\[j]
    if and? [in? newWord wordset][lastWord <> newWord][
        count: count + 1
        print [(pad to :string count 3)++":" newWord]
        lastWord: new newWord
    ]
]</syntaxhighlight>

{{out}}

<pre>  1: applicate 
  2: architect 
  3: astronomy 
  4: christine 
  5: christoph 
  6: committee 
  7: composite 
  8: constrict 
  9: construct 
 10: different 
 11: extensive 
 12: greenwood 
 13: implement 
 14: improvise 
 15: intercept 
 16: interpret 
 17: interrupt 
 18: philosoph 
 19: prescript 
 20: receptive 
 21: telephone 
 22: transcend 
 23: transport 
 24: transpose</pre>

=={{header|AutoHotkey}}==
<syntaxhighlight lang="autohotkey">FileRead, wList, % A_Desktop "\unixdict.txt"
for word in neighbour(wList)
    result .= word (Mod(A_Index, 6) ? "`t" : "`n")
MsgBox, 262144, , % result
return
 
neighbour(wList){
    words := [], wordExist := [], oRes := []
    for i, w in StrSplit(wList, "`n", "`r")
    {
        if (StrLen(w) < 9)
            continue
        words.Push(w)
        wordExist[w] := true
    }
    loop % words.Count()-9
    {
        n := A_Index
        newword := ""
        loop 9
            newword .= SubStr(words[n+A_Index-1], A_Index, 1)
        if wordExist[newword]
            oRes[newword] := true
    }
    return oRes
}</syntaxhighlight>
{{out}}
<pre>applicate	architect	astronomy	christine	christoph	committee
composite	constrict	construct	different	extensive	greenwood
implement	improvise	intercept	interpret	interrupt	philosoph
prescript	receptive	telephone	transcend	transport	transpose</pre>

=={{header|AWK}}==
<syntaxhighlight lang="awk">
# syntax: GAWK -f WORDS_FROM_NEIGHBOUR_ONES.AWK unixdict.txt
{   if (length($0) < 9) { next }
    arr1[++n] = $0
    arr2[$0] = ""
}
END {
    for (i=1; i<=n; i++) {
      word = substr(arr1[i],1,1)
      for (j=2; j<=9; j++) {
        if (!((i+j) in arr1)) { continue }
        word = word substr(arr1[i+j],j,1)
      }
      if (word in arr2) {
        printf("%s\n",word)
        delete arr2[word] # eliminate duplicates
      }
    }
    exit(0)
}
</syntaxhighlight>
{{out}}
<pre>
applicate
architect
astronomy
christine
christoph
committee
composite
constrict
construct
different
extensive
greenwood
implement
improvise
intercept
interpret
interrupt
philosoph
prescript
receptive
telephone
transcend
transport
transpose
</pre>
=={{header|C}}==
<syntaxhighlight lang="c">#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define MAX_WORD_SIZE 80
#define MIN_LENGTH 9
#define WORD_SIZE (MIN_LENGTH + 1)

void fatal(const char* message) {
    fprintf(stderr, "%s\n", message);
    exit(1);
}

void* xmalloc(size_t n) {
    void* ptr = malloc(n);
    if (ptr == NULL)
        fatal("Out of memory");
    return ptr;
}

void* xrealloc(void* p, size_t n) {
    void* ptr = realloc(p, n);
    if (ptr == NULL)
        fatal("Out of memory");
    return ptr;
}

int word_compare(const void* p1, const void* p2) {
    return memcmp(p1, p2, WORD_SIZE);
}

int main(int argc, char** argv) {
    const char* filename = argc < 2 ? "unixdict.txt" : argv[1];
    FILE* in = fopen(filename, "r");
    if (!in) {
        perror(filename);
        return EXIT_FAILURE;
    }
    char line[MAX_WORD_SIZE];
    size_t size = 0, capacity = 1024;
    char* words = xmalloc(WORD_SIZE * capacity);
    while (fgets(line, sizeof(line), in)) {
        size_t len = strlen(line) - 1; // last character is newline
        if (len < MIN_LENGTH)
            continue;
        line[len] = '\0';
        if (size == capacity) {
            capacity *= 2;
            words = xrealloc(words, WORD_SIZE * capacity);
        }
        memcpy(&words[size * WORD_SIZE], line, WORD_SIZE);
        ++size;
    }
    fclose(in);
    qsort(words, size, WORD_SIZE, word_compare);
    int count = 0;
    char prev_word[WORD_SIZE] = { 0 };
    for (size_t i = 0; i + MIN_LENGTH <= size; ++i) {
        char word[WORD_SIZE] = { 0 };
        for (size_t j = 0; j < MIN_LENGTH; ++j)
            word[j] = words[(i + j) * WORD_SIZE + j];
        if (word_compare(word, prev_word) == 0)
            continue;
        if (bsearch(word, words, size, WORD_SIZE, word_compare))
            printf("%2d. %s\n", ++count, word);
        memcpy(prev_word, word, WORD_SIZE);
    }
    free(words);
    return EXIT_SUCCESS;
}</syntaxhighlight>

{{out}}
<pre>
 1. applicate
 2. architect
 3. astronomy
 4. christine
 5. christoph
 6. committee
 7. composite
 8. constrict
 9. construct
10. different
11. extensive
12. greenwood
13. implement
14. improvise
15. intercept
16. interpret
17. interrupt
18. philosoph
19. prescript
20. receptive
21. telephone
22. transcend
23. transport
24. transpose
</pre>

=={{header|C++}}==
<syntaxhighlight lang="cpp">#include <algorithm>
#include <cstdlib>
#include <fstream>
#include <iomanip>
#include <iostream>
#include <string>
#include <vector>

int main(int argc, char** argv) {
    const int min_length = 9;
    const char* filename(argc < 2 ? "unixdict.txt" : argv[1]);
    std::ifstream in(filename);
    if (!in) {
        std::cerr << "Cannot open file '" << filename << "'.\n";
        return EXIT_FAILURE;
    }
    std::string line;
    std::vector<std::string> words;
    while (getline(in, line)) {
        if (line.size() >= min_length)
            words.push_back(line);
    }
    std::sort(words.begin(), words.end());
    std::string previous_word;
    int count = 0;
    for (size_t i = 0, n = words.size(); i + min_length <= n; ++i) {
        std::string word;
        word.reserve(min_length);
        for (size_t j = 0; j < min_length; ++j)
            word += words[i + j][j];
        if (previous_word == word)
            continue;
        auto w = std::lower_bound(words.begin(), words.end(), word);
        if (w != words.end() && *w == word)
            std::cout << std::setw(2) << ++count << ". " << word << '\n';
        previous_word = word;
    }
    return EXIT_SUCCESS;
}</syntaxhighlight>

{{out}}
<pre>
 1. applicate
 2. architect
 3. astronomy
 4. christine
 5. christoph
 6. committee
 7. composite
 8. constrict
 9. construct
10. different
11. extensive
12. greenwood
13. implement
14. improvise
15. intercept
16. interpret
17. interrupt
18. philosoph
19. prescript
20. receptive
21. telephone
22. transcend
23. transport
24. transpose
</pre>
=={{header|Delphi}}==
{{libheader| System.SysUtils}}
{{libheader| System.Classes}}
{{Trans|Java}}
<syntaxhighlight lang="delphi">
program Words_from_neighbour_ones;

{$APPTYPE CONSOLE}

uses
  System.SysUtils,
  System.Classes;

function GetWords(minLength: Integer = 1): TStringList;
var
  i: Integer;
begin
  Result := TStringList.create;
  Result.LoadFromFile('Unixdict.txt');
  with Result do
    for i := Count - 1 downto 0 do
      if Strings[i].Length < minLength then
        Delete(i);
  Result.Sort;
end;

var
  Words: TStringList;

const
  minLength = 9;

begin
  Words := GetWords(minLength);
  var previousWord := '';
  var count := 0;
  var n := Words.Count;

  for var i := 0 to n - minLength do
  begin

    var W := '';
    for var j := 0 to minLength - 1 do
      W := W + Words[i + j][j + 1];
    if W.Equals(previousWord) then
      Continue;
    if Words.IndexOf(W) >= 0 then
    begin
      inc(count);
      writeln(count: 2, '. ', W);
    end;
    previousWord := W;
  end;

  Words.Free;
  readln;
end.</syntaxhighlight>
{{out}}
<pre> 1. applicate
 2. architect
 3. astronomy
 4. christine
 5. christoph
 6. committee
 7. composite
 8. constrict
 9. construct
10. different
11. extensive
12. greenwood
13. implement
14. improvise
15. intercept
16. interpret
17. interrupt
18. philosoph
19. prescript
20. receptive
21. telephone
22. transcend
23. transport
24. transpose</pre>

=={{header|F_Sharp|F#}}==
<syntaxhighlight lang="fsharp">
// Words from neighbour ones. Nigel Galloway: February 11th., 2021.
let g=[|use n=System.IO.File.OpenText("unixdict.txt") in while not n.EndOfStream do yield n.ReadLine()|]|>Array.filter(fun n->n.Length>8)
g|>Array.windowed 9|>Array.map(fun n->n|>Array.mapi(fun n g->g.[n])|>System.String)|>Array.filter(fun n-> Array.contains n g)|>Array.distinct|>Array.iter(printfn "%s")
</syntaxhighlight>
{{out}}
<pre>
applicate
architect
astronomy
christine
christoph
committee
composite
constrict
construct
different
extensive
greenwood
implement
improvise
intercept
interpret
interrupt
philosoph
prescript
receptive
telephone
transcend
transport
transpose
</pre>
=={{header|Factor}}==
<code>{ "abc" "def" "ghi" } 2 clump</code>
produces
<code>{ { "abc" "def" } { "def" "ghi" } }</code>.
<code><clumps></code> is the same idea except it doesn't actually store all that redundant information in memory; it's a generator that generates clumps on demand. Notice that clumps are matrices, so we can take their diagonal with <code>main-diagonal</code>.
{{works with|Factor|0.99 2020-08-14}}
<syntaxhighlight lang="factor">USING: formatting grouping hash-sets io.encodings.ascii io.files
kernel literals math math.matrices sequences sequences.extras
sets strings ;

<< CONSTANT: words $[ "unixdict.txt" ascii file-lines ] >>

CONSTANT: wordset $[ words >hash-set ]

words                                       ! place word list on data stack
[ length 9 < ] reject                       ! remove small words from list
9 <clumps>                                  ! create virtual sequence of every 9 adjacent words (overlapping)
[ main-diagonal >string ]                   ! map clump to its diagonal
[ wordset in? ] map-filter                  ! filter diagonals that are words
members                                     ! remove duplicates
[ 1 + swap "%2d. %s\n" printf ] each-index  ! print words formatted nicely</syntaxhighlight>
{{out}}
<pre style="height:17em">
 1. applicate
 2. architect
 3. astronomy
 4. christine
 5. christoph
 6. committee
 7. composite
 8. constrict
 9. construct
10. different
11. extensive
12. greenwood
13. implement
14. improvise
15. intercept
16. interpret
17. interrupt
18. philosoph
19. prescript
20. receptive
21. telephone
22. transcend
23. transport
24. transpose
</pre>


=={{header|FreeBASIC}}==
{{trans|Ring}}
<syntaxhighlight lang="freebasic">
Open "unixdict.txt" For Input As #1
Dim As String cStr, wordList()
Dim As Integer n, p = 0, posic = 0
Do While Not Eof(1)
    Line Input #1, cStr
    p += 1
    If Len(cStr) > 8 Then
        posic += 1
        Redim Preserve wordList(posic)
        wordList(posic) = cStr
    End If
Loop
Close #1

Print p; " palabras en el archivo de diccionario: unixdict.txt"
Print Ubound(wordList); " palabras utilizables en el archivo del diccionario."

Dim As String char(1 To 9), palabra
Dim As String nextwords(Ubound(wordList))

Print !"\ntrabajando...\n"
Print !"Las nuevas palabras son:\n"

posic = 0
For n = 1 To Ubound(wordList)-8
    palabra = ""
    For p = 1 To 9
        char(p) = Mid(wordList(n+p-1),p,1)
        palabra += char(p)
    Next p
    
    For p = 1 To Ubound(wordList)
        If wordList(p) = palabra Then
            posic += 1
            nextwords(posic) = palabra
        End If
    Next p
Next n

posic = 0
For n = 2 To Ubound(nextwords)
    If nextwords(n) <> nextwords(n-1) Then
        posic += 1
        Print ""; posic; ". "; nextwords(n-1)
    End If
Next n

Print !"\nterminado..."
Sleep
</syntaxhighlight>
{{out}}
<pre>
 25104 palabras en el archivo de diccionario: unixdict.txt
 7250 palabras utilizables en el archivo del diccionario.

trabajando...

Las nuevas palabras son:

 1. applicate
 2. architect
 3. astronomy
 4. christine
 5. christoph
 6. committee
 7. composite
 8. constrict
 9. construct
 10. different
 11. extensive
 12. greenwood
 13. implement
 14. improvise
 15. intercept
 16. interpret
 17. interrupt
 18. philosoph
 19. prescript
 20. receptive
 21. telephone
 22. transcend
 23. transport
 24. transpose

terminado...
</pre>


=={{header|FutureBasic}}==
<syntaxhighlight lang="futurebasic">
#plist NSAppTransportSecurity @{NSAllowsArbitraryLoads:YES}

local fn WordList as CFArrayRef
  CFURLRef       url = fn URLWithString( @"http://wiki.puzzlers.org/pub/wordlists/unixdict.txt" )
  CFStringRef string = lcase(fn StringWithContentsOfURL( url, NSUTF8StringEncoding, NULL )), testStr
  CFArrayRef wordArr = fn StringComponentsSeparatedByString( string, @"\n" )
  CFMutableArrayRef wordsToKeep = fn MutableArrayNew
  
  for testStr in wordArr
    if len(testStr) > 8 then MutableArrayAddObject( wordsToKeep, testStr )
  next
end fn = fn ArrayWithArray( wordsToKeep )

local fn TestWords
  CFArrayRef        wordArr = fn WordList
  NSInteger        i = 0, j = 0, count = len( wordArr )
  CFMutableStringRef mutStr = fn MutableStringNew
  CFMutableArrayRef  mutArr = fn MutableArrayNew
  
  for i = 0 to count - 9
    CFMutableStringRef tempMutStr = fn MutableStringNew
    for j = 0 to 8
      MutableStringAppendString( tempMutStr, mid( wordArr[i + j], j, 1 ) )
    next
    if fn ArrayContainsObject( wordArr, tempMutStr ) then MutableArrayAddObject( mutArr, fn StringWithFormat( @"%@", tempMutStr ) )
  next
  CFArrayRef noDuplicates = fn OrderedSetArray( fn OrderedSetWithArray( mutArr ) )
  MutableStringSetString( mutStr, @"" )
  for i = 0 to len(noDuplicates) - 1
    MutableStringAppendString( mutStr, fn StringWithFormat( @"%2ld. %@\n", i+1, noDuplicates[i] ) )
  next
  printf @"%@", mutStr
end fn

fn TestWords

HandleEvents
</syntaxhighlight>
{{output}}
<pre style="height:20ex;">
 1. applicate
 2. architect
 3. astronomy
 4. christine
 5. christoph
 6. committee
 7. composite
 8. constrict
 9. construct
10. different
11. extensive
12. greenwood
13. implement
14. improvise
15. intercept
16. interpret
17. interrupt
18. philosoph
19. prescript
20. receptive
21. telephone
22. transcend
23. transport
24. transpose
</pre>

=={{header|Go}}==
<syntaxhighlight lang="go">package main

import (
    "bytes"
    "fmt"
    "io/ioutil"
    "log"
    "sort"
    "strings"
    "unicode/utf8"
)

func main() {
    wordList := "unixdict.txt"
    b, err := ioutil.ReadFile(wordList)
    if err != nil {
        log.Fatal("Error reading file")
    }
    bwords := bytes.Fields(b)
    var words []string
    for _, bword := range bwords {
        s := string(bword)
        if utf8.RuneCountInString(s) >= 9 {
            words = append(words, s)
        }
    }
    count := 0
    var alreadyFound []string
    le := len(words)
    var sb strings.Builder
    for i := 0; i < le-9; i++ {
        sb.Reset()
        for j := i; j < i+9; j++ {
            sb.WriteByte(words[j][j-i])
        }
        word := sb.String()
        ix := sort.SearchStrings(words, word)
        if ix < le && word == words[ix] {
            ix2 := sort.SearchStrings(alreadyFound, word)
            if ix2 == len(alreadyFound) {
                count++
                fmt.Printf("%2d: %s\n", count, word)
                alreadyFound = append(alreadyFound, word)
            }
        }
    }
}</syntaxhighlight>

{{out}}
<pre>
 1: applicate
 2: architect
 3: astronomy
 4: christine
 5: christoph
 6: committee
 7: composite
 8: constrict
 9: construct
10: different
11: extensive
12: greenwood
13: implement
14: improvise
15: intercept
16: interpret
17: interrupt
18: philosoph
19: prescript
20: receptive
21: telephone
22: transcend
23: transport
24: transpose
</pre>

=={{header|J}}==
<syntaxhighlight lang="j">   >(([-.-.)9 <@((=i.9)#&,])\ 9{.&>(#~ 8<#@>)) cutLF fread 'unixdict.txt'
applicate
architect
astronomy
christine
christoph
committee
composite
constrict
construct
different
extensive
greenwood
implement
improvise
intercept
interpret
interrupt
philosoph
prescript
receptive
telephone
transcend
transport
transpose</syntaxhighlight>

In other words: find the set intersection (<code>([-.-.)</code>) between words and the sequences of 9 ascending position characters (<code>9 <@((=i.9)#&,])\</code> ...) from extracting the first 9 characters (<code>9{.&></code> ...) of words with more than 8 characters (<code>(#~ 8<#@>)</code>) for words from unixdict.txt (( ... )<code>cutLF fread 'unixdict.txt'</code>)

=={{header|Java}}==
<syntaxhighlight lang="java">import java.io.*;
import java.util.*;

public class NeighbourWords {
    public static void main(String[] args) {
        try {
            int minLength = 9;
            List<String> words = new ArrayList<>();
            try (BufferedReader reader = new BufferedReader(new FileReader("unixdict.txt"))) {
                String line;
                while ((line = reader.readLine()) != null) {
                    if (line.length() >= minLength)
                        words.add(line);
                }
            }
            Collections.sort(words);
            String previousWord = null;
            int count = 0;
            for (int i = 0, n = words.size(); i + minLength <= n; ++i) {
                StringBuilder sb = new StringBuilder(minLength);
                for (int j = 0; j < minLength; ++j)
                    sb.append(words.get(i + j).charAt(j));
                String word = sb.toString();
                if (word.equals(previousWord))
                    continue;
                if (Collections.binarySearch(words, word) >= 0)
                    System.out.printf("%2d. %s\n", ++count, word);
                previousWord = word;
            }
        } catch (Exception e)  {
            e.printStackTrace();
        }
    }
}</syntaxhighlight>

{{out}}
<pre>
 1. applicate
 2. architect
 3. astronomy
 4. christine
 5. christoph
 6. committee
 7. composite
 8. constrict
 9. construct
10. different
11. extensive
12. greenwood
13. implement
14. improvise
15. intercept
16. interpret
17. interrupt
18. philosoph
19. prescript
20. receptive
21. telephone
22. transcend
23. transport
24. transpose
</pre>

=={{header|JavaScript}}==
<syntaxhighlight lang="javascript">
document.write(`
  <p>Choose dictionary: <input id="dict" type="file"></p>
  <p>Word length: <input id="wlen" type="number" value="9"</p>
  <div id="out"></div>
`);

function go(dict) {
  let wordLen = parseInt(document.getElementById('wlen').value),
      result = [];
  dict = dict.replace(/\n|\r/g, '_');
  dict = dict.replace(/__/g, ' ').split(' ');
  dict = dict.filter(e => e.length >= wordLen);
  for (let i = 0; i < dict.length - wordLen; i++) {
    let word = dict[i][0];
    for (let j = 1; j < wordLen; j++) {
      word += dict[i+j][j];
    }
    if (dict.includes(word) && !result.includes(word)) result.push(word);
  }
  document.getElementById('out').innerText = result.join(', ');
}

document.getElementById('dict').onchange = function() {
  let f = document.getElementById('dict').files[0],
      fr = new FileReader();
  fr.onload = function() { go(fr.result) }
  fr.readAsText(f);
}
</syntaxhighlight>
{{out}}
<pre>
applicate, architect, astronomy, christine, christoph, committee, composite, constrict, construct, different, extensive, greenwood, implement, improvise, intercept, interpret, interrupt, philosoph, prescript, receptive, telephone, transcend, transport, transpose
</pre>

=={{header|jq}}==

For speed, this solution constructs a JSON object as a dictionary ($hash):<syntaxhighlight lang="jq">
# input: the dictionary
# $n: starting point (starting at 0)
def form_word($n):
   . as $dict
   | reduce range(0;9) as $i (""; . + $dict[$n+$i][$i: $i+1] );

[inputs | select(length >= 9)]
| . as $dict
| (reduce.[] as $x ({}; .[$x]=true)) as $hash
| range(0; length-9) as $i | form_word($i) | select($hash[.])</syntaxhighlight>
{{out}}
<pre>["applicate","architect","astronomy","christine","christoph","committee","committee","committee","committee","committee","composite","constrict","constrict","construct","different","extensive","greenwood","implement","improvise","intercept","interpret","interrupt","interrupt","philosoph","prescript","receptive","telephone","transcend","transcend","transport","transpose"]
</pre>

====Removing duplicates efficiently====
Using `def form_word`, we have only to modify the last line above:
<syntaxhighlight lang="jq">[inputs | select(length >= 9)]
| . as $dict
| (reduce.[] as $x ({}; .[$x]=true)) as $hash
| reduce range(0; length-9) as $i ({$hash};
       ($dict | form_word($i)) as $w
       | if .hash[$w] then .hash[$w] = null | .words += [$w] else . end)
| .words</syntaxhighlight>

=={{header|Julia}}==
<syntaxhighlight lang="julia">function wordsfromneighbourones(wordfile::String, len = 9, colwidth = 11, numcols = 8)
    println("Word source: $wordfile\n")
    words = filter(w -> length(w) >= len, split(read(wordfile, String), r"\s+"))
    dict, shown, found = Dict(w => 1 for w in words), 0, String[]
    for position in eachindex(@view words[1:end-len+1])
        new_word = prod([words[i + position - 1][i] for i in 1:len])
        if haskey(dict, new_word) && !(new_word in found)
            push!(found, new_word)
            print(rpad(new_word, colwidth), (shown += 1) % numcols == 0 ? "\n" : "")
        end
    end
end

wordsfromneighbourones("unixdict.txt")
</syntaxhighlight>{{out}}
<pre>
Word source: unixdict.txt

applicate  architect  astronomy  christine  christoph  committee  composite  constrict
construct  different  extensive  greenwood  implement  improvise  intercept  interpret
interrupt  philosoph  prescript  receptive  telephone  transcend  transport  transpose
</pre>

=={{header|Ksh}}==
<syntaxhighlight lang="ksh">
#!/bin/ksh

# Words from neighbour ones

#	# Variables:
#
dict='/home/ostrande/prj/roscode/unixdict.txt'
integer MIN_WORD_LEN=9 TRUE=1 FALSE=0

typeset -a word newword
integer i j=0

#	# Functions:
#
#	# Function _buildword(arr) - build MIN_WORD_LEN word from arr eles
#
function _buildword {
	typeset _arr ; nameref _arr="$1"
	typeset _indx ; integer _indx=$2
	typeset _i _str ; integer _i

	for ((_i=0; _i<MIN_WORD_LEN; _i++)); do
		_str+=${_arr[$((_indx+_i))]:${_i}:1}
	done
	echo "${_str}"
}

#	# Function _isword(word, wordlist) - return 1 if word in wordlist
#
function _isword {
	typeset _word ; _word="$1"
	typeset _wordlist ; nameref _wordlist="$2"

	[[ ${_word} == @(${_wordlist}) ]] && return $TRUE
	return $FALSE
}

 ######
# main #
 ######

while read; do
	(( ${#REPLY} >= MIN_WORD_LEN )) && word+=( $REPLY )
done < ${dict}
oldIFS="$IFS" ; IFS='|' ; words=${word[*]} ; IFS="${oldIFS}"

for ((i=0; i<${#word[*]}; i++)); do
	candidate=$(_buildword word ${i})
	_isword "${candidate}" words 
	if (( $? )); then
		if [[ ${candidate} != @(${uniq%\|*}) ]]; then
			print $((++j)) ${candidate}
			uniq+="${candidate}|"
		fi
	fi
done</syntaxhighlight>
{{out}}<pre>
1 applicate
2 architect
3 astronomy
4 christine
5 christoph
6 committee
7 composite
8 constrict
9 construct
10 different
11 extensive
12 greenwood
13 implement
14 improvise
15 intercept
16 interpret
17 interrupt
18 philosoph
19 prescript
20 receptive
21 telephone
22 transcend
23 transport
24 transpose</pre>

=={{header|Lua}}==
<syntaxhighlight lang="lua">wordlist, wordhash = {}, {}
for word in io.open("unixdict.txt", "r"):lines() do
  if #word >= 9 then
    wordlist[#wordlist+1] = word
    wordhash[word] = #wordlist
  end
end
for n = 1, #wordlist-8 do
  local word = ""
  for i = 0, 8 do
    word = word .. wordlist[n+i]:sub(i+1,i+1)
  end
  if wordhash[word] then
    -- task appears to say "for every n, do all of the following"
    -- but doesn't appear to say "..unless a duplicate"
    -- so, intentionally verbose/redundant:
    print(word)
  end
end</syntaxhighlight>
{{out}}
<pre>applicate
architect
astronomy
christine
christoph
committee
committee
committee
committee
committee
composite
constrict
constrict
construct
different
extensive
greenwood
implement
improvise
intercept
interpret
interrupt
interrupt
philosoph
prescript
receptive
telephone
transcend
transcend
transport
transpose</pre>

=={{header|Mathematica}}/{{header|Wolfram Language}}==
<syntaxhighlight lang="mathematica">dict = Once[Import["https://web.archive.org/web/20180611003215/http://www.puzzlers.org/pub/wordlists/unixdict.txt"]];
dict //= StringSplit[#,"\n"]&;
dict //= Select[StringLength/*GreaterEqualThan[9]];
firsts9 = Characters[dict][[All,;;9]];
words = StringJoin[Diagonal[firsts9,-#]]&/@Range[0,Length[firsts9]-9];
Intersection[words,dict]</syntaxhighlight>
{{out}}
<pre>{"applicate", "architect", "astronomy", "christine", "christoph", "committee", "composite", "constrict", "construct", "different", "extensive", "greenwood", "implement", "improvise", "intercept", "interpret", "interrupt", "philosoph", "prescript", "receptive", "telephone", "transcend", "transport", "transpose"}</pre>

=={{header|Nim}}==
<syntaxhighlight lang="nim">import sets, strutils, sugar

# Build list and set of words with length >= 9.
let words = collect(newSeq):
              for word in "unixdict.txt".lines:
                if word.len >= 9: word
let wordSet = words.toHashSet

var lastWord = ""
var newWord = newString(9)
var count = 0
for i in 0..words.high-9:
  for j in 0..8: newWord[j] = words[i+j][j]
  if newWord in wordSet:
    if newWord != lastWord:
      inc count
      echo ($count).align(2), ' ', newWord
      lastWord = newWord</syntaxhighlight>

{{out}}
<pre> 1 applicate
 2 architect
 3 astronomy
 4 christine
 5 christoph
 6 committee
 7 composite
 8 constrict
 9 construct
10 different
11 extensive
12 greenwood
13 implement
14 improvise
15 intercept
16 interpret
17 interrupt
18 philosoph
19 prescript
20 receptive
21 telephone
22 transcend
23 transport
24 transpose</pre>

=={{header|Perl}}==
<syntaxhighlight lang="perl">#!/usr/bin/perl

use strict; # https://rosettacode.org/wiki/Words_from_neighbour_ones
use warnings;

@ARGV = 'unixdict.txt';
my $skew = join '', map { s/^.{9}\K.+//r } my @words = grep length() > 9, <>;
my %dict = map { $_ => 1 } grep length == 10, @words;
my %seen;
my $nextch = '.{10}(\\w)' x 8;
while( $skew =~ /^(\w)(?=$nextch)/gms )
  {
  my $new = join '', @{^CAPTURE}, "\n";
  $dict{$new} and !$seen{$new}++ and print $new;
  }</syntaxhighlight>
{{out}}
applicate
architect
astronomy
christine
christoph
committee
composite
constrict
construct
different
extensive
greenwood
implement
improvise
intercept
interpret
interrupt
philosoph
prescript
receptive
telephone
transcend
transport
transpose

=={{header|Phix}}==
<!--<syntaxhighlight lang="phix">(phixonline)-->
 <span style="color: #008080;">with</span> <span style="color: #008080;">javascript_semantics</span>
 <span style="color: #008080;">function</span> <span style="color: #000000;">over9</span><span style="color: #0000FF;">(</span><span style="color: #004080;">string</span> <span style="color: #000000;">word</span><span style="color: #0000FF;">)</span> <span style="color: #008080;">return</span> <span style="color: #7060A8;">length</span><span style="color: #0000FF;">(</span><span style="color: #000000;">word</span><span style="color: #0000FF;">)>=</span><span style="color: #000000;">9</span> <span style="color: #008080;">end</span> <span style="color: #008080;">function</span>
 <span style="color: #004080;">sequence</span> <span style="color: #000000;">words</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">filter</span><span style="color: #0000FF;">(</span><span style="color: #7060A8;">unix_dict</span><span style="color: #0000FF;">(),</span><span style="color: #000000;">over9</span><span style="color: #0000FF;">)</span>
 <span style="color: #008080;">function</span> <span style="color: #000000;">slicen</span><span style="color: #0000FF;">(</span><span style="color: #004080;">integer</span> <span style="color: #000000;">n</span><span style="color: #0000FF;">)</span> <span style="color: #008080;">return</span> <span style="color: #7060A8;">vslice</span><span style="color: #0000FF;">(</span><span style="color: #000000;">words</span><span style="color: #0000FF;">,</span><span style="color: #000000;">n</span><span style="color: #0000FF;">)[</span><span style="color: #000000;">n</span><span style="color: #0000FF;">..-</span><span style="color: #000000;">10</span><span style="color: #0000FF;">+</span><span style="color: #000000;">n</span><span style="color: #0000FF;">]</span> <span style="color: #008080;">end</span> <span style="color: #008080;">function</span>
 <span style="color: #004080;">sequence</span> <span style="color: #000000;">neighwords</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">unique</span><span style="color: #0000FF;">(</span><span style="color: #7060A8;">filter</span><span style="color: #0000FF;">(</span><span style="color: #7060A8;">columnize</span><span style="color: #0000FF;">(</span><span style="color: #7060A8;">apply</span><span style="color: #0000FF;">(</span><span style="color: #7060A8;">tagset</span><span style="color: #0000FF;">(</span><span style="color: #000000;">9</span><span style="color: #0000FF;">),</span><span style="color: #000000;">slicen</span><span style="color: #0000FF;">)),</span><span style="color: #008000;">"in"</span><span style="color: #0000FF;">,</span><span style="color: #000000;">words</span><span style="color: #0000FF;">))</span>
 <span style="color: #7060A8;">printf</span><span style="color: #0000FF;">(</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"%d words: %s\n"</span><span style="color: #0000FF;">,{</span><span style="color: #7060A8;">length</span><span style="color: #0000FF;">(</span><span style="color: #000000;">neighwords</span><span style="color: #0000FF;">),</span><span style="color: #7060A8;">join</span><span style="color: #0000FF;">(</span><span style="color: #7060A8;">shorten</span><span style="color: #0000FF;">(</span><span style="color: #000000;">neighwords</span><span style="color: #0000FF;">,</span><span style="color: #008000;">""</span><span style="color: #0000FF;">,</span><span style="color: #000000;">3</span><span style="color: #0000FF;">))})</span>
<!--</syntaxhighlight>-->
{{out}}
<pre>
24 words: applicate architect astronomy ... transcend transport transpose
</pre>

=={{header|Processing}}==
<syntaxhighlight lang="processing">StringList words = new StringList(), found = new StringList();
for (String str : loadStrings("unixdict.txt")) {
  if (str.length() >= 9) {
    words.append(str);
  }
}
for (int i = 0; i < words.size() - 9; i++) {
  String temp = "";
  for (int j = 0; j < 9; j++) {
    temp += words.get(i + j).charAt(j);
  }
  if (words.hasValue(temp) && !found.hasValue(temp)) {
    found.append(temp);
  }
}
for (String word : found) {
  println(word);
}</syntaxhighlight>
{{out}}
<pre style="height: 18em;">applicate
architect
astronomy
christine
christoph
committee
composite
constrict
construct
different
extensive
greenwood
implement
improvise
intercept
interpret
interrupt
philosoph
prescript
receptive
telephone
transcend
transport
transpose</pre>


=={{header|Python}}==
Tested on Python 3+, the file download will work only if the link is still active. It is possible that you may be able to fetch the file in your browser but download via code may still fail. Check whether you are connected to a VPN, it works on open networks.
<syntaxhighlight lang="python">
#Aamrun, 5th November 2021

import urllib.request
from collections import Counter
 
urllib.request.urlretrieve("http://wiki.puzzlers.org/pub/wordlists/unixdict.txt", "unixdict.txt")
 
dictionary = open("unixdict.txt","r")
 
wordList = dictionary.read().split('\n')
 
dictionary.close()
 
filteredWords = [chosenWord for chosenWord in wordList if len(chosenWord)>=9]

for word in filteredWords[:-9]:
  position = filteredWords.index(word)
  newWord = "".join([filteredWords[position+i][i] for i in range(0,9)])
  if newWord in filteredWords:
   print(newWord)  
</syntaxhighlight>
{{Output}}
Yes, there are duplicates, the task doesn't say that only unique elements should be present, hence the complete raw list will appear as below :
<pre>
applicate
architect
astronomy
christine
christoph
committee
committee
committee
committee
committee
composite
constrict
constrict
construct
different
extensive
greenwood
implement
improvise
intercept
interpret
interrupt
interrupt
philosoph
prescript
receptive
telephone
transcend
transcend
transport
transpose
</pre>

=={{header|Quackery}}==

<syntaxhighlight lang="Quackery">  [ [] swap
    behead nested swap
    witheach
      [ over 0 peek
        over = iff
          drop done
        nested
        dip join ]
     join ]                is unique   (   [ --> [ )


  [ over find swap found ] is has      ( [ x --> b )

  [ [] swap 9 split drop
    witheach
      [ i^ peek join ] ]   is diagonal (   [ --> [ )

  $ "rosetta/unixdict.txt" sharefile
  drop nest$
  [] [] rot witheach
    [ dup size 9 < iff
        drop
      else
        [ nested join ] ]
  dup temp put
  dup size 8 - times
    [ dup diagonal
      temp share
      over has iff
        [ nested
          swap dip join ]
      else drop
      behead drop ]
  temp release
  drop
  unique
  witheach
  [ echo$
    i^ 4 mod 3 = iff
     cr else sp ]</syntaxhighlight>

{{out}}

<pre>applicate architect astronomy christine
christoph committee composite constrict
construct different extensive greenwood
implement improvise intercept interpret
interrupt philosoph prescript receptive
telephone transcend transport transpose</pre>

=={{header|Raku}}==
<syntaxhighlight lang="raku" line>my @words_ge_9 = 'unixdict.txt'.IO.lines.grep( *.chars >= 9 );
my %words_eq_9  = @words_ge_9           .grep( *.chars == 9 ).Set;

my @new_words = gather for @words_ge_9.rotor( 9 => -8 ) -> @nine_words {
    my $new_word = [~] map { @nine_words[$_].substr($_, 1) }, ^9;

    take $new_word if %words_eq_9{$new_word};
}

.say for unique @new_words;</syntaxhighlight>
{{out}}
<pre>
applicate
architect
astronomy
christine
christoph
committee
composite
constrict
construct
different
extensive
greenwood
implement
improvise
intercept
interpret
interrupt
philosoph
prescript
receptive
telephone
transcend
transport
transpose
</pre>

=={{header|REXX}}==
This REXX version doesn't care what order the words in the dictionary are in, &nbsp; nor does it care what
<br>case &nbsp;(lower/upper/mixed)&nbsp; the words are in, &nbsp; the search for the words is &nbsp; ''caseless''.

It also allows the minimum length to be specified on the command line (CL) as well as the dictionary file identifier.
<syntaxhighlight lang="rexx">/*REXX pgm finds words that're composed from neighbor words (within an identified dict).*/
parse arg minL iFID .                            /*obtain optional arguments from the CL*/
if minL=='' | minL=="," then minL= 9             /*Not specified?  Then use the default.*/
if iFID=='' | iFID=="," then iFID='unixdict.txt' /* "      "         "   "   "     "    */
#= 0;          @.=;                     !.= 0    /*number of usable words in dictionary.*/
            do recs=0  while lines(iFID)\==0     /*read each word in the file  (word=X).*/
            x= strip( linein( iFID) )            /*pick off a word from the input line. */
            if length(x)<minL  then iterate      /*Is the word too short?  Then skip it.*/
            #= # + 1                             /*bump the count of usable words.      */
            @.#= x;       upper x;      !.x= 1   /*original case;  create findable word.*/
            end   /*recs*/                       /* [↑]   semaphore name is uppercased. */
say copies('─', 30)        recs               "words in the dictionary file: "        iFID
say copies('─', 30)  right(#, length(recs) )  "usable words in the dictionary file."
finds= 0                                         /*count of the  changable  words found.*/
say;                             $=
        do j=1  for #;           y= left(@.j, 1) /*initialize the new word to be built. */
             do k=2  to 9  until n>#;   n= j + k /*use next 8 usable words in dictionary*/
             y= y || substr(@.n, k, 1)           /*build a new word, 1 letter at a time.*/
             end   /*k*/
        uy=y;                    upper uy        /*obtain uppercase version of the word.*/
        if \!.uy  then iterate                   /*Does the new word exist?  No, skip it*/
        if wordpos(uy, $)>0  then iterate        /*Word is a dup?  Then skip duplicate. */
        finds= finds + 1                         /*bump count of found neighboring words*/
        $= $ uy                                  /*add a word to the list of words found*/
        say right( left(y, 30), 40)              /*indent original word for readability.*/
        end      /*j*/
                                                 /*stick a fork in it,  we're all done. */
say copies('─', 30)     finds     ' neighbor words found with a minimum length of '   minL</syntaxhighlight>
{{out|output|text=&nbsp; when using the default inputs:}}
<pre>
────────────────────────────── 25104 words in the dictionary file:  unixdict.txt
──────────────────────────────  7250 usable words in the dictionary file.

          applicate
          architect
          astronomy
          christine
          christoph
          committee
          composite
          constrict
          construct
          different
          extensive
          greenwood
          implement
          improvise
          intercept
          interpret
          interrupt
          philosoph
          prescript
          receptive
          telephone
          transcend
          transport
          transpose
────────────────────────────── 24  neighbor words found with a minimum length of  9
</pre>

=={{header|Ring}}==
<syntaxhighlight lang="ring">
cStr = read("unixdict.txt")
wordList = str2list(cStr)
char = list(9)
nextwords = []
num = 0

see "working..." + nl

ln = len(wordList)
for n = ln to 1 step -1
    if len(wordList[n]) < 9
       del(wordList,n)
    ok
next

see "New words are:" + nl

for n = 1 to len(wordList)-8
    for m = 1 to 9
        char[m] = substr(wordList[n+m-1],m,1)
    next
    str = ""
    for p = 1 to 9
        str = str + char[p]
    next
    ind = find(wordList,str)
    if ind > 0
       add(nextwords,wordList[ind])
    ok
next

nextwords = sort(nextwords)
for n = len(nextwords) to 2 step -1
    if nextwords[n] = nextwords[n-1]
       del(nextwords,n)
    ok
next

for n = 1 to len(nextwords)
    see "" + n + ". " + nextwords[n] + nl
next

see "done..." + nl
</syntaxhighlight>
Output:
<pre>
working...
New words are:
1. applicate
2. architect
3. astronomy
4. christine
5. christoph
6. committee
7. composite
8. constrict
9. construct
10. different
11. extensive
12. greenwood
13. implement
14. improvise
15. intercept
16. interpret
17. interrupt
18. philosoph
19. prescript
20. receptive
21. telephone
22. transcend
23. transport
24. transpose
done...
</pre>

=={{header|Ruby}}==
<syntaxhighlight lang="ruby">new_word_size = 9
well_sized  = File.readlines("unixdict.txt", chomp: true).reject{|word| word.size < new_word_size}
list = well_sized.each_cons(new_word_size).filter_map do |slice|
  candidate = (0...new_word_size).inject(""){|res, idx| res << slice[idx][idx] }
  candidate if well_sized.include?(candidate)
end
puts list.uniq
</syntaxhighlight>
{{out}}
<pre>applicate
architect
astronomy
christine
christoph
committee
composite
constrict
construct
different
extensive
greenwood
implement
improvise
intercept
interpret
interrupt
philosoph
prescript
receptive
telephone
transcend
transport
transpose
</pre>

=={{header|VBScript}}==
Run it in CScript.
<syntaxhighlight lang="vb">
with createobject("ADODB.Stream")
  .charset ="UTF-8"
  .open
  .loadfromfile("unixdict.txt")
  s=.readtext
end with  
a=split (s,vblf)
set d=createobject("scripting.dictionary")
redim b(ubound(a))
i=0
for each x in a
  s=trim(x)
  if len(s)>=9 then 
    if len(s)= 9 then d.add s,""
    b(i)=s
    i=i+1   
  end if
next
redim preserve b(i-1)
wscript.echo i
j=1
for i=0 to ubound(b)-9
  s9=mid(b(i+0),1,1)& mid(b(i+1),2,1)& mid(b(i+2),3,1)& mid(b(i+3),4,1)& mid(b(i+4),5,1)&_
  mid(b(i+5),6,1)& mid(b(i+6),7,1)& mid(b(i+7),8,1)& mid(b(i+8),9,1)
  'wscript.echo b(i), s9
  if d.exists(s9) then 
    wscript.echo j,s9
    d.remove(s9)
    j=j+1
  end if 
next   

</syntaxhighlight>
{{out}}
<pre>
1 applicate
2 architect
3 astronomy
4 christine
5 christoph
6 committee
7 composite
8 constrict
9 construct
10 different
11 extensive
12 greenwood
13 implement
14 improvise
15 intercept
16 interpret
17 interrupt
18 philosoph
19 prescript
20 receptive
21 telephone
22 transcend
23 transport
24 transpose
</pre>

=={{header|V (Vlang)}}==
{{trans|AutoHotkey}}
<syntaxhighlight lang="v (vlang)">import os

fn main() {
    mut result :=''
    unixdict := os.read_file('./unixdict.txt') or {panic('file not found')}
    for idx, word in neighbour(unixdict) {
        if ((idx + 1) % 6 == 0) == true {result += '$word \n'} else {result += '$word '}
    }
    println(result)
}

fn neighbour(list string) []string {
    mut word_arr, mut res_arr := []string{}, []string{}
    mut word_exist := map[string]bool
    mut new_word :=''
    for word in list.split_into_lines() {
        if word.len >= 9 {
            word_arr << word
            word_exist[word] = true
        }
    }
    for out_idx in 0..word_arr.len - 9 {
        new_word =''
        for in_idx in 0..9 {
            new_word += word_arr[out_idx + in_idx].substr(in_idx, in_idx + 1)
            if word_exist[new_word] == true && res_arr.any(it == new_word) == false {res_arr << new_word}
            }
    }
    return res_arr
}</syntaxhighlight>

{{out}}
<pre>
applicate architect astronomy christine christoph committee 
composite constrict construct different extensive greenwood 
implement improvise intercept interpret interrupt philosoph 
prescript receptive telephone transcend transport transpose
</pre>

=={{header|Wren}}==
{{libheader|Wren-sort}}
{{libheader|Wren-fmt}}
<syntaxhighlight lang="wren">import "io" for File
import "./sort" for Find
import "./fmt" for Fmt

var wordList = "unixdict.txt" // local copy
var words = File.read(wordList).trimEnd().split("\n").where { |w| w.count >= 9 }.toList
var count = 0
var alreadyFound = []
for (i in 0...words.count - 9) {
    var word = ""
    for (j in i...i+9) word = word + words[j][j-i]
    if (Find.all(words, word)[0] && !Find.all(alreadyFound, word)[0]) {
        count = count + 1
        Fmt.print("$2d: $s", count, word)
        alreadyFound.add(word)
    }
}</syntaxhighlight>

{{out}}
<pre>
 1: applicate
 2: architect
 3: astronomy
 4: christine
 5: christoph
 6: committee
 7: composite
 8: constrict
 9: construct
10: different
11: extensive
12: greenwood
13: implement
14: improvise
15: intercept
16: interpret
17: interrupt
18: philosoph
19: prescript
20: receptive
21: telephone
22: transcend
23: transport
24: transpose
</pre>

=={{header|XPL0}}==
<syntaxhighlight lang="xpl0">string  0;              \use zero-terminated strings
int     Dict(26000);    \pointers to words (enough for unixdict.txt)
int     DictSize;       \actual number of pointers in Dict

func    StrCmp(A, B);   \Compare string A to B
char    A, B;           \Returns: >0 if A>B, =0 if A=B, and <0 if A<B
int     I;
[for I:= 0 to -1>>1 do
        [if A(I) # B(I) then return A(I) - B(I);
         if A(I) = 0 then return 0;
        ];
];      \StrCmp

func    LookUp(Word);   \Return 'true' if Word is in Dict
char    Word;
int     Lo, Hi, I, Cmp;
[Lo:= 0;  Hi:= DictSize-1;
loop    [I:= (Lo+Hi) / 2; \binary search
        Cmp:= StrCmp(Word, Dict(I));
        if Cmp < 0 then Hi:= I-1 else Lo:= I+1;
        if Cmp = 0 then return true;
        if Lo > Hi then return false;
        ];
];      \LookUp

int     DI, I, Ch, Count;
char    Word, Neigh(10), Last(10);
def     LF=$0A, CR=$0D, EOF=$1A;

[FSet(FOpen("unixdict.txt", 0), ^I); \load dictionary
OpenI(3);                        \assume alphabetical order and all lowercase
DI:= 0;
repeat  Dict(DI):= Reserve(0);   \get pointer to memory used to store Word
        Word:= Dict(DI);
        I:= 0;
        loop    [repeat Ch:= ChIn(3) until Ch # CR;     \remove possible CR
                if Ch=LF or Ch=EOF then quit;
                Word(I):= Ch;
                I:= I+1;
                ];
        if I >= 9 then                  \ignore words less than 9 characters
                [Word(I):= 0;           \terminate Word string
                I:= Reserve(I+1);       \reserve memory used for Word
                DI:= DI+1;              \next dictionary entry
                ];
until   Ch = EOF;
DictSize:= DI;

DI:= 0;  Count:= 0;  Last(0):= 0;
repeat  for I:= 0 to 9-1 do             \build Neigh word using letters from
            [Word:= Dict(DI+I);         \ following words
            Neigh(I):= Word(I);
            ];
        Neigh(9):= 0;                   \terminate string
        if LookUp(Neigh) then           \if it's a word and not already listed
            if StrCmp(Neigh, Last) # 0 then
                [CopyMem(Last, Neigh, 10);
                Count:= Count+1;
                Text(0, Neigh);
                if rem(Count/8) = 0 then CrLf(0) else ChOut(0, ^ );
                ];
        DI:= DI+1;                      \next word in dictionary
until   DI >= DictSize-9;
CrLf(0);
]</syntaxhighlight>

{{out}}
<pre>
applicate architect astronomy christine christoph committee composite constrict
construct different extensive greenwood implement improvise intercept interpret
interrupt philosoph prescript receptive telephone transcend transport transpose
</pre>

=={{header|Yabasic}}==
{{trans|FreeBASIC}}
<syntaxhighlight lang="yabasic">
open "unixdict.txt" for reading as #1
p = 0
posic = 0
while not eof(1)
    line input #1 cStr$
    p = p + 1
    if len(cStr$) > 8 then
        posic = posic + 1
        redim wordList$(posic)
        wordList$(posic) = cStr$
    end if
wend
close #1

print p, " palabras en el archivo de diccionario: unixdict.txt"
print arraysize(wordList$(), 1), " palabras utilizables en el archivo del diccionario."

dim char$(9)
dim nextwords$(arraysize(wordList$(), 1))

print chr$(10), "trabajando...", chr$(10)

print "Las nuevas palabras son:", chr$(10)

posic = 0
for n = 1 to arraysize(wordList$(), 1) - 8
    palabra$ = ""
    for p = 1 to 9
        char$(p) = mid$(wordList$(n + p - 1), p, 1)
        palabra$ = palabra$ + char$(p)
    next p
    
    for p = 1 to arraysize(wordList$(), 1)
        if wordList$(p) = palabra$ then
            posic = posic + 1
            nextwords$(posic) = palabra$
        end if
    next p
next n

posic = 0
for n = 2 to arraysize(nextwords$(), 1)
    if nextwords$(n) <> nextwords$(n - 1) then
        posic = posic + 1
        print "", posic, ". ", nextwords$(n - 1)
    end if
next n
end
</syntaxhighlight>
{{out}}
<pre>
Igual que la entrada de FreeBASIC.
</pre>