12-Letter Words Matching _____N____M_

There are 13 12-letter words that match _____N____M_. 5 are common words, such as ECUMENICISMS and NATIONALISMS. A rarer one is SARDONICISMS. In this set, S is the most frequent open letter (13 words). 1 words contain a doubled letter.

Full list 13

ecumenicismsnationalismspaternalismsrationalismsregionalismsegocentrismssalpingotomycommunalismsexternalismsmaternalismspersonalismsretransformssardonicisms

About this list

Words
13 (5 common words)
Common example
ecumenicisms
Rare example
sardonicisms
Doubled letters
1
Ending in S
12
Most frequent letter
S (13)

Questions

How many 12-letter words matching _____n____m_ are there?

13. 5 of them are common words.

What is a common example?

ECUMENICISMS is among the common words in this set.