8-Letter Words Matching ____R_F_

There are 18 8-letter words that match ____R_F_. 4 are common words, such as AIRCRAFT and DANDRUFF. A rarer one is WARCRAFT. In this set, I is the most frequent open letter (13 words). 6 words contain a doubled letter.

Full list 18

aircraftdandruffgentrifyriffraffesterifyetherifyreverifywakerifewoodruffcopurifydandriffisograftmisgraftoverrifeoverruffrepurifyseacraftwarcraft

About this list

Words
18 (4 common words)
Common example
aircraft
Rare example
warcraft
Doubled letters
6
Ending in S
0
Most frequent letter
I (13)

Questions

How many 8-letter words matching ____r_f_ are there?

18. 4 of them are common words.

What is a common example?

AIRCRAFT is among the common words in this set.