9-Letter Words Matching _____T_F_

There are 17 9-letter words that match _____T_F_. 9 are common words, such as APERITIFS and DEMYSTIFY. A rarer one is RECERTIFY. In this set, E is the most frequent open letter (11 words). 9 words contain a doubled letter.

Full list 17

aperitifsdemystifyflagstafffoodstuffobjectifypikestaffplaintiffrefortifywaitstaffcandytuftfeedstuffoverstaffoverstuffprenotifycowlstaffdecertifyrecertify

About this list

Words
17 (9 common words)
Common example
aperitifs
Rare example
recertify
Doubled letters
9
Ending in S
1
Most frequent letter
E (11)

Questions

How many 9-letter words matching _____t_f_ are there?

17. 9 of them are common words.

What is a common example?

APERITIFS is among the common words in this set.