13-Letter Words Matching _O________A__

There are 44 13-letter words that match _O________A__. 18 are common words, such as COMMISSARIATS and COMPANIONWAYS. A rarer one is POSTSECONDARY. In this set, N is the most frequent open letter (38 words). 9 words contain a doubled letter.

Full list 44

Common words

commissariatscompanionwayscompassionatecomplementarycomplimentaryconcessionaryconfessionalscosmopolitanscounterattackfountainheadsnonagenariansnonhereditary
commissariatscompanionwayscompassionatecomplementarycomplimentaryconcessionaryconfessionalscosmopolitanscounterattackfountainheadsnonagenariansnonhereditarynonspiritualsnortheastwardnorthwestwardsoutheastwardsouthwestwardtotalitariansconcretionaryconfectionaryconvertiplanenonintoxicantpolycarbonatepostdoctoratecocarboxylasecollenchymataconclusionaryconvertaplaneconvulsionarycoprophiliacscounterdemandnoncollegiatenondegeneratenondeliberatenonelementarynonessentialsnonlibrariansnonnumericalsnonphysiciansnonstationarynonuniversalspogonophoranspostdiluvianspostsecondary

About this list

Words
44 (18 common words)
Common example
commissariats
Rare example
postsecondary
Doubled letters
9
Ending in S
16
Most frequent letter
N (38)

Questions

How many 13-letter words matching _o________a__ are there?

44. 18 of them are common words.

What is a common example?

COMMISSARIATS is among the common words in this set.