13-Letter Words Matching _N__________M

There are 16 13-letter words that match _N__________M. 4 are common words, such as ANTICOMMUNISM and ANTILOGARITHM. A rarer one is INTERFEROGRAM. In this set, I is the most frequent open letter (15 words). 4 words contain a doubled letter.

Full list 16

anticommunismantilogarithmindividualismindustrialismannexationismanticlinoriumantiterrorismencephalogramindeterminisminfallibilismunilateralismanalphabetismantinomianismantiritualismencyclopedisminterferogram

About this list

Words
16 (4 common words)
Common example
anticommunism
Rare example
interferogram
Doubled letters
4
Ending in S
0
Most frequent letter
I (15)

Questions

How many 13-letter words matching _n__________m are there?

16. 4 of them are common words.

What is a common example?

ANTICOMMUNISM is among the common words in this set.