11-Letter Words Matching ____N____M_

There are 17 11-letter words that match ____N____M_. 5 are common words, such as BRAINSTORMS and ECHINODERMS. A rarer one is REVANCHISMS. In this set, S is the most frequent open letter (15 words). 2 words contain a doubled letter.

Full list 17

brainstormsechinodermsjournalismsspoonerismstechnetiumslaconicismslaryngotomynominalismsorganicismssplenectomystrongroomsvaginectomychronogramscockneyismslebensraumsoceanariumsrevanchisms

About this list

Words
17 (5 common words)
Common example
brainstorms
Rare example
revanchisms
Doubled letters
2
Ending in S
14
Most frequent letter
S (15)

Questions

How many 11-letter words matching ____n____m_ are there?

17. 5 of them are common words.

What is a common example?

BRAINSTORMS is among the common words in this set.