13-Letter Words Matching __N_____M____

There are 17 13-letter words that match __N_____M____. 6 are common words, such as ANNOUNCEMENTS and DENOUNCEMENTS. A rarer one is NONTREATMENTS. In this set, O is the most frequent open letter (16 words). 4 words contain a doubled letter.

Full list 17

announcementsdenouncementsmonochromaticnonalignmentsnonredeemablerenouncementsgynandromorphmonogrammaticnondiplomaticlanguishmentsmonochromatormonochromistsmonofilamentsnoneconomistsnonrandomnessnonsystematicnontreatments

About this list

Words
17 (6 common words)
Common example
announcements
Rare example
nontreatments
Doubled letters
4
Ending in S
10
Most frequent letter
O (16)

Questions

How many 13-letter words matching __n_____m____ are there?

17. 6 of them are common words.

What is a common example?

ANNOUNCEMENTS is among the common words in this set.