15-Letter Words Matching ____I________T_

There are 19 15-letter words that match ____I________T_. 8 are common words, such as CARCINOGENICITY and CONFIDENTIALITY. A rarer one is TERRITORIALISTS. In this set, I is the most frequent open letter (16 words). 2 words contain a doubled letter.

Full list 19

carcinogenicityconfidentialityhorticulturistsmarriageabilityprohibitionistssentimentalistsstraightjacketstraditionalistsarchiepiscopatealuminosilicatecitriculturistsdithiocarbamatedorsiventralityfloriculturistsmultiwavelengthoverinvestmentspantisocratistssilviculturiststerritorialists

About this list

Words
19 (8 common words)
Common example
carcinogenicity
Rare example
territorialists
Doubled letters
2
Ending in S
11
Most frequent letter
I (16)

Questions

How many 15-letter words matching ____i________t_ are there?

19. 8 of them are common words.

What is a common example?

CARCINOGENICITY is among the common words in this set.