10-Letter Words Matching ______N_M_

There are 13 10-letter words that match ______N_M_. 3 are common words, such as GASTRONOMY and LANTHANUMS. A rarer one is SUBECONOMY. In this set, O is the most frequent open letter (12 words). 0 words contain a doubled letter.

Full list 13

gastronomylanthanumspseudonymschromonemagastronomeheteronomyheteronymspathognomybotulinumscryptonymsdiseconomypolygonumssubeconomy

About this list

Words
13 (3 common words)
Common example
gastronomy
Rare example
subeconomy
Doubled letters
0
Ending in S
6
Most frequent letter
O (12)

Questions

How many 10-letter words matching ______n_m_ are there?

13. 3 of them are common words.

What is a common example?

GASTRONOMY is among the common words in this set.