10-Letter Words Matching _R__F_____

There are 17 10-letter words that match _R__F_____. 10 are common words, such as ARCHFIENDS and ARTIFICERS. A rarer one is PROOFROOMS. In this set, I is the most frequent open letter (15 words). 6 words contain a doubled letter.

Full list 17

archfiendsartificersartificialbriefcasescrawfishescrayfishesprofferingproofreadstraffickedtraffickergraffitistcrawfisheddrumfishesfrogfishesgrayfishesironfistedproofrooms

About this list

Words
17 (10 common words)
Common example
archfiends
Rare example
proofrooms
Doubled letters
6
Ending in S
10
Most frequent letter
I (15)

Questions

How many 10-letter words matching _r__f_____ are there?

17. 10 of them are common words.

What is a common example?

ARCHFIENDS is among the common words in this set.