13-Letter Words Matching ___F___N_____

There are 13 13-letter words that match ___F___N_____. 8 are common words, such as DIFFERENTIALS and DIFFERENTIATE. A rarer one is WOLFISHNESSES. In this set, E is the most frequent open letter (13 words). 12 words contain a doubled letter.

Full list 13

differentialsdifferentiatediffusenessesperfectnessesprofanenessesprofusenessesraffishnessesselfishnessesdifferentnessuniformnessesconferencingsconfidingnesswolfishnesses

About this list

Words
13 (8 common words)
Common example
differentials
Rare example
wolfishnesses
Doubled letters
12
Ending in S
12
Most frequent letter
E (13)

Questions

How many 13-letter words matching ___f___n_____ are there?

13. 8 of them are common words.

What is a common example?

DIFFERENTIALS is among the common words in this set.