13-Letter Words Matching _____A__O____

There are 29 13-letter words that match _____A__O____. 9 are common words, such as EFFICACIOUSLY and FLIRTATIOUSLY. A rarer one is TEMERARIOUSLY. In this set, S is the most frequent open letter (25 words). 4 words contain a doubled letter.

Full list 29

Common words

efficaciouslyflirtatiouslygeostationaryinvitationalsmisdiagnosingophthalmologyphilharmonicsscandalmongerspontaneouslyannexationismannexationistliberationist
efficaciouslyflirtatiouslygeostationaryinvitationalsmisdiagnosingophthalmologyphilharmonicsscandalmongerspontaneouslyannexationismannexationistliberationistmanufactoriespolycarbonateprediagnosticrevelationistautoradiogramburglariouslycalefactoriescrystalloidaldodecaphoniesdodecaphonistmegakaryocytemountainouslynonstationaryquadraphonicsrecreationistseparationisttemerariously

About this list

Words
29 (9 common words)
Common example
efficaciously
Rare example
temerariously
Doubled letters
4
Ending in S
6
Most frequent letter
S (25)

Questions

How many 13-letter words matching _____a__o____ are there?

29. 9 of them are common words.

What is a common example?

EFFICACIOUSLY is among the common words in this set.