10-Letter Words Matching ___TF_____

There are 13 10-letter words that match ___TF_____. 6 are common words, such as FISTFIGHTS and FLATFISHES. A rarer one is POSTFREEZE. In this set, S is the most frequent open letter (11 words). 4 words contain a doubled letter.

Full list 13

fistfightsflatfishesflatfootedplatformedportfoliosrestfullertortfeasorfootfaultsgoatfishespostfixingpostflightpostformedpostfreeze

About this list

Words
13 (6 common words)
Common example
fistfights
Rare example
postfreeze
Doubled letters
4
Ending in S
5
Most frequent letter
S (11)

Questions

How many 10-letter words matching ___tf_____ are there?

13. 6 of them are common words.

What is a common example?

FISTFIGHTS is among the common words in this set.