13-Letter Words Matching N_________A__

There are 19 13-letter words that match N_________A__. 6 are common words, such as NONAGENARIANS and NONHEREDITARY. A rarer one is NONUNIVERSALS. In this set, O is the most frequent open letter (18 words). 3 words contain a doubled letter.

Full list 19

nonagenariansnonhereditarynonspiritualsnortheastwardnorthwestwardnymphomaniacsnecrophiliacsnonintoxicantneuraminidasenoncollegiatenondegeneratenondeliberatenonelementarynonessentialsnonlibrariansnonnumericalsnonphysiciansnonstationarynonuniversals

About this list

Words
19 (6 common words)
Common example
nonagenarians
Rare example
nonuniversals
Doubled letters
3
Ending in S
9
Most frequent letter
O (18)

Questions

How many 13-letter words matching n_________a__ are there?

19. 6 of them are common words.

What is a common example?

NONAGENARIANS is among the common words in this set.