15-Letter Words Matching _AS____________

There are 19 15-letter words that match _AS____________. 7 are common words, such as BASTARDIZATIONS and DASTARDLINESSES. A rarer one is VASODILATATIONS. In this set, I is the most frequent open letter (17 words). 10 words contain a doubled letter.

Full list 19

bastardizationsdastardlinessesgastroenteritisgastronomicallymasochisticallypasteurizationstastelessnessesfashionablenessgastrologicallymastoidectomiespassifloraceouspassionlessnessvasoconstrictorbasidiomycetouseasygoingnessesmasculinizationmasterfulnessesvascularizationvasodilatations

About this list

Words
19 (7 common words)
Common example
bastardizations
Rare example
vasodilatations
Doubled letters
10
Ending in S
13
Most frequent letter
I (17)

Questions

How many 15-letter words matching _as____________ are there?

19. 7 of them are common words.

What is a common example?

BASTARDIZATIONS is among the common words in this set.