7-Letter Words Matching __R__F_

There are 22 7-letter words that match __R__F_. 13 are common words, such as AIRLIFT and CERTIFY. A rarer one is UNROOFS. In this set, I is the most frequent open letter (12 words). 14 words contain a doubled letter.

Full list 22

airliftcertifyearmufffortifygiraffehorrifymortifyscruffsscruffytariffsterrifyturnoffversifyagraffecarnifytorrefyverbifyreroofsshroffstartufetorrifyunroofs

About this list

Words
22 (13 common words)
Common example
airlift
Rare example
unroofs
Doubled letters
14
Ending in S
5
Most frequent letter
I (12)

Questions

How many 7-letter words matching __r__f_ are there?

22. 13 of them are common words.

What is a common example?

AIRLIFT is among the common words in this set.