Thanks again.

I tried your code on a dict file of words with length 8. Here're some of the results:

...
abetters (not ok, t is repeated too)
abigails (not ok)
abillity (not ok, l is repeated too)
abscises (not ok, s repeated more than twice)
abscisin (not ok, i is repeated too)
abscisse (not ok)
acaudate (not ok)
...

[download]
The result list is about 3300 words. I scanned through about 200 and couldn't find one that fits the regex...Maybe the word doesn't exist in the list...

In reply to Re^4: Regex help by Anonymous Monk
in thread Regex help by Anonymous Monk

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