12-Letter Words Matching ___F_____N__

There are 13 12-letter words that match ___F_____N__. 10 are common words, such as COEFFICIENTS and CONFECTIONER. A rarer one is MYOFILAMENTS. In this set, I is the most frequent open letter (13 words). 8 words contain a doubled letter.

Full list 13

coefficientsconfectionerconfessionalconfinementsfulfillmentsinefficiencynonfictionalprofessionalscaffoldingstraffickingsnewfashionedinefficientsmyofilaments

About this list

Words
13 (10 common words)
Common example
coefficients
Rare example
myofilaments
Doubled letters
8
Ending in S
7
Most frequent letter
I (13)

Questions

How many 12-letter words matching ___f_____n__ are there?

13. 10 of them are common words.

What is a common example?

COEFFICIENTS is among the common words in this set.