7-Letter Words Containing IRM

There are 13 7-letter words that contain IRM. 7 are common words, such as AFFIRMS and AIRMAIL. A rarer one is THAIRMS. In this set, S is the most frequent open letter (9 words). 2 words contain a doubled letter.

Full list 13

affirmsairmailconfirmfirmestfirmingsquirmssquirmykirmesschirmedfirmansfirmersinfirmsthairms

About this list

Words
13 (7 common words)
Common example
affirms
Rare example
thairms
Doubled letters
2
Ending in S
7
Most frequent letter
S (9)

Questions

How many 7-letter words containing irm are there?

13. 7 of them are common words.

What is a common example?

AFFIRMS is among the common words in this set.