12-Letter Words Matching __R_F_______

There are 19 12-letter words that match __R_F_______. 5 are common words, such as FIREFIGHTERS and FIREFIGHTING. A rarer one is THRIFTLESSLY. 5 words contain a doubled letter.

Full list 19

firefightersfirefightingpurificationrarefactionsverificationaerificationbirefringentirreformableirrefragableirrefragablypurificatoryunreflectingunreflectiveacriflavinesagroforesteragroforestrypurificatorssurefootedlythriftlessly

About this list

Words
19 (5 common words)
Common example
firefighters
Rare example
thriftlessly
Doubled letters
5
Ending in S
4

Questions

How many 12-letter words matching __r_f_______ are there?

19. 5 of them are common words.

What is a common example?

FIREFIGHTERS is among the common words in this set.