9-Letter Words Matching ___N___M_

There are 25 9-letter words that match ___N___M_. 7 are common words, such as BIENNIUMS and CRONYISMS. A rarer one is SPANWORMS. In this set, S is the most frequent open letter (19 words). 4 words contain a doubled letter.

Full list 25

Common words

bienniumscronyismsfranciumsmainframemoonbeamsphantasmsscandiumschondromaexanthemagiantismsgranulomahornbeams
bienniumscronyismsfranciumsmainframemoonbeamsphantasmsscandiumschondromaexanthemagiantismsgranulomahornbeamsreinflamethingummyaconitumsbrunizemsexanthemsfrenulumsgranddamshornwormsphantasmaplanformsreinformssaintdomsspanworms

About this list

Words
25 (7 common words)
Common example
bienniums
Rare example
spanworms
Doubled letters
4
Ending in S
18
Most frequent letter
S (19)

Questions

How many 9-letter words matching ___n___m_ are there?

25. 7 of them are common words.

What is a common example?

BIENNIUMS is among the common words in this set.