14-Letter Words Matching _N__________M_

There are 13 14-letter words that match _N__________M_. 4 are common words, such as ANTICOMMUNISMS and ANTILOGARITHMS. A rarer one is INTERFEROGRAMS. In this set, S is the most frequent open letter (12 words). 2 words contain a doubled letter.

Full list 13

anticommunismsantilogarithmsindividualismsindustrialismsencephalogramsanalphabetismsantinomianismsantiritualismsantiterrorismsencyclopedismsendarterectomyindeterminismsinterferograms

About this list

Words
13 (4 common words)
Common example
anticommunisms
Rare example
interferograms
Doubled letters
2
Ending in S
12
Most frequent letter
S (12)

Questions

How many 14-letter words matching _n__________m_ are there?

13. 4 of them are common words.

What is a common example?

ANTICOMMUNISMS is among the common words in this set.