12-Letter Words Matching ____A____O__

There are 51 12-letter words that match ____A____O__. 21 are common words, such as ACCLAMATIONS and AGGRAVATIONS. A rarer one is ULTRASERIOUS. In this set, S is the most frequent open letter (42 words). 10 words contain a doubled letter.

Full list 51

Common words

acclamationsaggravationscantankerousdeclamationsdeclarationsdegradationsexclamationsexplanationsextraditionsextrasensoryinflammatorynoncancerous
acclamationsaggravationscantankerousdeclamationsdeclarationsdegradationsexclamationsexplanationsextraditionsextrasensoryinflammatorynoncancerousnonhazardouspeccadilloesphilanthropyprecancerouspreparationsprofanationspropagationsreclamationstetrahedronsachlamydeousbombacaceousextrasystolegalvanoscopeicosahedronsingratiatorylollapaloosalollapaloozamethaqualonenoctambulousnonmaliciousonomasiologypentahedronssantalaceoussmilacaceousstyracaceoustetrapterousaggradationsalloantibodyautoantibodydepravationsfantasticoesmethanationspinealectomypolyalcoholsprosauropodsservanthoodstetrapyrroletrepanationsultraserious

About this list

Words
51 (21 common words)
Common example
acclamations
Rare example
ultraserious
Doubled letters
10
Ending in S
37
Most frequent letter
S (42)

Questions

How many 12-letter words matching ____a____o__ are there?

51. 21 of them are common words.

What is a common example?

ACCLAMATIONS is among the common words in this set.