10-Letter Words Containing CKF

There are 12 10-letter words that contain CKF. 3 are common words, such as BACKFIELDS and BACKFIRING. A rarer one is SUCKFISHES. In this set, I is the most frequent open letter (11 words). 2 words contain a doubled letter.

Full list 12

backfieldsbackfiringcockfightsblackfacesjackfruitsbackfilledbackfittedblackfliesbrickfieldjackfishesrockfishessuckfishes

About this list

Words
12 (3 common words)
Common example
backfields
Rare example
suckfishes
Doubled letters
2
Ending in S
8
Most frequent letter
I (11)

Questions

How many 10-letter words containing ckf are there?

12. 3 of them are common words.

What is a common example?

BACKFIELDS is among the common words in this set.