7-Letter Words Matching __E_F__

There are 14 7-letter words that match __E_F__. 7 are common words, such as FRETFUL and GLEEFUL. A rarer one is TEENFUL. In this set, L is the most frequent open letter (9 words). 6 words contain a doubled letter.

Full list 14

fretfulgleefulheedfulneedfuloverfedoverflytwelfthdeerflyskepfulcheffedoverfaroverfatsheafedteenful

About this list

Words
14 (7 common words)
Common example
fretful
Rare example
teenful
Doubled letters
6
Ending in S
0
Most frequent letter
L (9)

Questions

How many 7-letter words matching __e_f__ are there?

14. 7 of them are common words.

What is a common example?

FRETFUL is among the common words in this set.