11-Letter Words Matching __F______S_

There are 12 11-letter words that match __F______S_. 6 are common words, such as COFFEEHOUSE and DEFENSELESS. A rarer one is BUFFALOFISH. In this set, I is the most frequent open letter (9 words). 9 words contain a doubled letter.

Full list 12

coffeehousedefenselessdiffusenessenfranchiseofficialismraffishnessaffranchiseinfantilisminfusionismoffenselessofficialesebuffalofish

About this list

Words
12 (6 common words)
Common example
coffeehouse
Rare example
buffalofish
Doubled letters
9
Ending in S
4
Most frequent letter
I (9)

Questions

How many 11-letter words matching __f______s_ are there?

12. 6 of them are common words.

What is a common example?

COFFEEHOUSE is among the common words in this set.