13-Letter Words Matching _________N__M

There are 28 13-letter words that match _________N__M. 11 are common words, such as ANTICOMMUNISM and EQUESTRIANISM. A rarer one is SUPERORGANISM. In this set, I is the most frequent open letter (28 words). 7 words contain a doubled letter.

Full list 28

Common words

anticommunismequestrianismexhibitionismexpressionismimpressionismmicroorganismperfectionismpostmodernismprotectionismrepublicanismvegetarianismactinouranium
anticommunismequestrianismexhibitionismexpressionismimpressionismmicroorganismperfectionismpostmodernismprotectionismrepublicanismvegetarianismactinouraniumannexationismcontrarianismfruitarianismindeterminismpedestrianismprotoactiniumrevolutionismaldosteronismantinomianismbipartisanismdecamethoniumfeuilletonismhexamethoniumhyperurbanismphilhellenismsuperorganism

About this list

Words
28 (11 common words)
Common example
anticommunism
Rare example
superorganism
Doubled letters
7
Ending in S
0
Most frequent letter
I (28)

Questions

How many 13-letter words matching _________n__m are there?

28. 11 of them are common words.

What is a common example?

ANTICOMMUNISM is among the common words in this set.