9-Letter Words Containing MST

There are 12 9-letter words that contain MST. 9 are common words, such as BRIMSTONE and DRUMSTICK. A rarer one is SEAMSTERS. In this set, R is the most frequent open letter (10 words). 2 words contain a doubled letter.

Full list 12

brimstonedrumstickfarmsteadfilmstripgemstoneshamstringhamstrunghemstitchteamstersdoomstersdeemstersseamsters

About this list

Words
12 (9 common words)
Common example
brimstone
Rare example
seamsters
Doubled letters
2
Ending in S
5
Most frequent letter
R (10)

Questions

How many 9-letter words containing mst are there?

12. 9 of them are common words.

What is a common example?

BRIMSTONE is among the common words in this set.