13-Letter Words Matching _I__F________

There are 20 13-letter words that match _I__F________. 8 are common words, such as DISAFFECTIONS and DISAFFILIATED. A rarer one is VINIFICATIONS. In this set, S is the most frequent open letter (17 words). 12 words contain a doubled letter.

Full list 20

disaffectionsdisaffiliateddisaffiliatesfirefightingsmindfulnessesvilificationswillfulnesseswistfulnessesbirefringencedisaffectedlydisafforestedvivificationswishfulnessescitificationsdieffenbachiadisaffirmanceliebfraumilchnidificationspitifulnessesvinifications

About this list

Words
20 (8 common words)
Common example
disaffections
Rare example
vinifications
Doubled letters
12
Ending in S
13
Most frequent letter
S (17)

Questions

How many 13-letter words matching _i__f________ are there?

20. 8 of them are common words.

What is a common example?

DISAFFECTIONS is among the common words in this set.