10-Letter Words Matching ______F_S_

There are 18 10-letter words that match ______F_S_. 2 are common words, such as CUTTLEFISH and SILVERFISH. A rarer one is MUTTONFISH. In this set, I is the most frequent open letter (18 words). 9 words contain a doubled letter.

Full list 18

cuttlefishsilverfisharcherfishbutterfishcandlefishcircumfusedamselfishdollarfishguitarfishneedlefishpaddlefishparrotfishrabbitfishribbonfishsuckerfishanglerfishgroundfishmuttonfish

About this list

Words
18 (2 common words)
Common example
cuttlefish
Rare example
muttonfish
Doubled letters
9
Ending in S
0
Most frequent letter
I (18)

Questions

How many 10-letter words matching ______f_s_ are there?

18. 2 of them are common words.

What is a common example?

CUTTLEFISH is among the common words in this set.