15-Letter Words Matching ____A_O________

There are 29 15-letter words that match ____A_O________. 1 are common words, such as ANTIABORTIONIST and ANOMALOUSNESSES. A rarer one is ULTRAMONTANISMS. In this set, T is the most frequent open letter (25 words). 6 words contain a doubled letter.

Full list 29

Common words

antiabortionistanomalousnessesarchaeopteryxesbarbarousnessescephalochordatecollaborativelydermatoglyphicsgalvanometricaljuxtapositionaltrypanosomiasisultrasonographyunseaworthiness
antiabortionistanomalousnessesarchaeopteryxesbarbarousnessescephalochordatecollaborativelydermatoglyphicsgalvanometricaljuxtapositionaltrypanosomiasisultrasonographyunseaworthinesscephalothoracescephalothoraxesdeglamorizationdictatorialnessintrapopulationmechanochemicalmechanoreceptornonsaponifiablephthalocyaninespostadolescentspostapocalyptictrihalomethanestrypanosomiasesultracommercialultraconvenientultramodernistsultramontanisms

About this list

Words
29 (1 common words)
Common example
antiabortionist
Rare example
ultramontanisms
Doubled letters
6
Ending in S
15
Most frequent letter
T (25)

Questions

How many 15-letter words matching ____a_o________ are there?

29. 1 of them are common words.

What is a common example?

ANTIABORTIONIST is among the common words in this set.