11-Letter Words Matching ____F__A___

There are 22 11-letter words that match ____F__A___. 9 are common words, such as INDEFINABLE and INDEFINABLY. A rarer one is TRAFFICABLE. In this set, I is the most frequent open letter (21 words). 11 words contain a doubled letter.

Full list 22

indefinableindefinablyirrefutableirrefutablypacificallyproofreaderundefinablevociferatedvociferatespurificatortrafficatorvinificatorvociferancevociferatorchiffchaffschiffonadesinsufflatedinsufflatesinsufflatorluciferasespacificatortrafficable

About this list

Words
22 (9 common words)
Common example
indefinable
Rare example
trafficable
Doubled letters
11
Ending in S
5
Most frequent letter
I (21)

Questions

How many 11-letter words matching ____f__a___ are there?

22. 9 of them are common words.

What is a common example?

INDEFINABLE is among the common words in this set.