15-Letter Words Matching A____I_________

There are 27 15-letter words that match A____I_________. 7 are common words, such as ADMINISTRATIONS and AMBITIOUSNESSES. A rarer one is ATRABILIOUSNESS. In this set, T is the most frequent open letter (26 words). 11 words contain a doubled letter.

Full list 27

Common words

administrationsambitiousnessesartificialitiesatrociousnessesaudaciousnessesautobiographersautobiographiesadenoidectomiesalgorithmicallyantivivisectionarboriculturistassimilationist
administrationsambitiousnessesartificialitiesatrociousnessesaudaciousnessesautobiographersautobiographiesadenoidectomiesalgorithmicallyantivivisectionarboriculturistassimilationistassociationismsautolithographyalkalinizationsammonificationsantifilibustersantihistaminicsantiliberalismsantilibertarianantimilitarismsantimilitaristsarteriographiesassimilationismassociationistsassociativitiesatrabiliousness

About this list

Words
27 (7 common words)
Common example
administrations
Rare example
atrabiliousness
Doubled letters
11
Ending in S
20
Most frequent letter
T (26)

Questions

How many 15-letter words matching a____i_________ are there?

27. 7 of them are common words.

What is a common example?

ADMINISTRATIONS is among the common words in this set.