10-Letter Words Matching ______F_N_

There are 13 10-letter words that match ______F_N_. 3 are common words, such as DEBRIEFING and IBUPROFENS. A rarer one is YELLOWFINS. 7 words contain a doubled letter.

Full list 13

debriefingibuprofensrestaffingreproofingoverrefinethreadfinsbedwarfingdistelfinkenfeoffinginfeoffingrestuffingtamoxifensyellowfins

About this list

Words
13 (3 common words)
Common example
debriefing
Rare example
yellowfins
Doubled letters
7
Ending in S
4

Questions

How many 10-letter words matching ______f_n_ are there?

13. 3 of them are common words.

What is a common example?

DEBRIEFING is among the common words in this set.