11-Letter Words Matching _____F__R__

There are 12 11-letter words that match _____F__R__. 2 are common words, such as CHAUFFEURED and TRANSFERRED. A rarer one is TRANSFERRIN. In this set, R is the most frequent open letter (10 words). 7 words contain a doubled letter.

Full list 12

chauffeuredtransferredtransferrermicrofibrilmicrofloraemicrofloralmicroflorasmillefiorismisinferredmisreferredneurofibriltransferrin

About this list

Words
12 (2 common words)
Common example
chauffeured
Rare example
transferrin
Doubled letters
7
Ending in S
2
Most frequent letter
R (10)

Questions

How many 11-letter words matching _____f__r__ are there?

12. 2 of them are common words.

What is a common example?

CHAUFFEURED is among the common words in this set.