12-Letter Words Matching __R__F______

There are 14 12-letter words that match __R__F______. 7 are common words, such as CERTIFICATED and CERTIFICATES. A rarer one is TERRAFORMING. 9 words contain a doubled letter.

Full list 14

certificatedcertificatesforcefulnesshorrificallymirthfulnessterrificallyterrifyinglyhorrifyinglymercifulnessmortifyinglystrawflowerscarryforwardhorsefleshesterraforming

About this list

Words
14 (7 common words)
Common example
certificated
Rare example
terraforming
Doubled letters
9
Ending in S
6

Questions

How many 12-letter words matching __r__f______ are there?

14. 7 of them are common words.

What is a common example?

CERTIFICATED is among the common words in this set.