15-Letter Words Matching _O_F___________

There are 13 15-letter words that match _O_F___________. 5 are common words, such as COMFORTABLENESS and CONFECTIONERIES. A rarer one is NONFULFILLMENTS. In this set, N is the most frequent open letter (13 words). 7 words contain a doubled letter.

Full list 13

comfortablenessconfectioneriesconfidentialityconfraternitiesconfrontationalconfigurationalconfectionariesconfessionalismconfessionalistconfidingnessesconfirmednessesnonflammabilitynonfulfillments

About this list

Words
13 (5 common words)
Common example
comfortableness
Rare example
nonfulfillments
Doubled letters
7
Ending in S
7
Most frequent letter
N (13)

Questions

How many 15-letter words matching _o_f___________ are there?

13. 5 of them are common words.

What is a common example?

COMFORTABLENESS is among the common words in this set.