8-Letter Words Matching __S__F__

There are 22 8-letter words that match __S__F__. 8 are common words, such as BASINFUL and CASTOFFS. A rarer one is UPSHIFTS. In this set, U is the most frequent open letter (14 words). 8 words contain a doubled letter.

Full list 22

basinfulcastoffsdistaffskissoffsmastiffsrestaffstastefulwastefulbusulfandesulfurdisulfiddustoffsenserfedhastefulhuswifesmisinfermisreferrestuffsunshiftsunsinfulunstuffyupshifts

About this list

Words
22 (8 common words)
Common example
basinful
Rare example
upshifts
Doubled letters
8
Ending in S
10
Most frequent letter
U (14)

Questions

How many 8-letter words matching __s__f__ are there?

22. 8 of them are common words.

What is a common example?

BASINFUL is among the common words in this set.