11-Letter Words Matching _____EF____

There are 12 11-letter words that match _____EF____. 7 are common words, such as AFTEREFFECT and BATTLEFIELD. A rarer one is QUATREFOILS. In this set, L is the most frequent open letter (8 words). 7 words contain a doubled letter.

Full list 12

aftereffectbattlefieldbattlefrontdebriefingsgentlefolksoverrefinedthenceforthblithefullycinquefoilsreposefullychangefullyquatrefoils

About this list

Words
12 (7 common words)
Common example
aftereffect
Rare example
quatrefoils
Doubled letters
7
Ending in S
4
Most frequent letter
L (8)

Questions

How many 11-letter words matching _____ef____ are there?

12. 7 of them are common words.

What is a common example?

AFTEREFFECT is among the common words in this set.