There have been already many solutions w/word list look up posted to this thread. I'll try to give a 'hands on' example (if you work on a windows box).

First, you could download a dictionary from

and put it in a directory, eg. "c:\dic-0294" (extract it *there*, winrar or winzip should work)
You'll see ~30 different files, each containing words of a defined length.

Then, create a Perl script like the ones that have been posted in the thread or use one that is tailored for this dictionary, like:

 use strict;
 use warnings;

 my $word  = shift || 'OLHOSC';
 my $fname = sprintf 'length%02d.txt', length $word; # eg. length06.tx
+t
 my $word_key = join '', sort split //, lc $word;    # sort lowercase 
+letters

 open my $fh, '<', $fname or die "sorry, no such word list available, 
+Bye!";
 while( my $line = <$fh> ) {
    chomp $line;
    my $dict_key = join '', sort split //, lc $line;
    print "$word => $line\n" if $dict_key eq $word_key
    # bail out here - if only one match is needed
 }
 close $fh;
[download]

From the *length* of the looked-up word, the name of the dictionary file is built. If you extracted the above archive, then the files with word lengths between 2 and 32 should reside in the current directory.

Regards

mwa