4-Letter Words Containing EF

There are 23 4-letter words that contain EF. 12 are common words, such as BEEF and CHEF. A rarer one is TREF. In this set, T is the most frequent open letter (8 words). 5 words contain a doubled letter.

Full list 23

beefchefclefdeftdefyfiefheftleftliefreefrefswefteffseftsjefekeefkiefreftalefdefikefstefftref

About this list

Words
23 (12 common words)
Common example
beef
Rare example
tref
Doubled letters
5
Ending in S
4
Most frequent letter
T (8)

Questions

How many 4-letter words containing ef are there?

23. 12 of them are common words.

What is a common example?

BEEF is among the common words in this set.