12-Letter Words Matching ___E___F____

There are 17 12-letter words that match ___E___F____. 9 are common words, such as AFTEREFFECTS and DIVERSIFYING. A rarer one is SUPERINFECTS. 5 words contain a doubled letter.

Full list 17

aftereffectsdiversifyingindemnifyingintensifiersintensifyingobjectifyingrevengefullysolemnifyingunmercifullyspeechifyingdecertifyingdibenzofurandiversifiersindemnifiersinterdiffuserecertifyingsuperinfects

About this list

Words
17 (9 common words)
Common example
aftereffects
Rare example
superinfects
Doubled letters
5
Ending in S
5

Questions

How many 12-letter words matching ___e___f____ are there?

17. 9 of them are common words.

What is a common example?

AFTEREFFECTS is among the common words in this set.