9-Letter Words Matching F_____U__

There are 32 9-letter words that match F_____U__. 16 are common words, such as FACTOTUMS and FAITHFULS. A rarer one is FRONDEURS. In this set, S is the most frequent open letter (21 words). 5 words contain a doubled letter.

Full list 32

Common words

factotumsfaithfulsfarmhousefirehousefireplugsfiretruckflashbulbflashcubeflashgunsflophousefoodstuffforecourt
factotumsfaithfulsfarmhousefirehousefireplugsfiretruckflashbulbflashcubeflashgunsflophousefoodstuffforecourtfortitudefranciumsfreakoutsfurniturefasciculefebrifugefeedstufffiloplumefioriturafisticufffrankfurtfrogmouthfrotteursfasciculifioritureflameoutsflashtubefootfaultfrenulumsfrondeurs

About this list

Words
32 (16 common words)
Common example
factotums
Rare example
frondeurs
Doubled letters
5
Ending in S
10
Most frequent letter
S (21)

Questions

How many 9-letter words matching f_____u__ are there?

32. 16 of them are common words.

What is a common example?

FACTOTUMS is among the common words in this set.