13-Letter Words Matching ____AI_______

There are 15 13-letter words that match ____AI_______. 4 are common words, such as ACQUAINTANCES and BOUGAINVILLEA. A rarer one is NONMAINSTREAM. In this set, N is the most frequent open letter (15 words). 4 words contain a doubled letter.

Full list 15

acquaintancesbougainvilleacontainerizedcontainerizesprosaicnessesantiaircraftsappraisementscochairpersoncontainerisedcontainerisescontainerlesscontainerportcontainershiphebraizationsnonmainstream

About this list

Words
15 (4 common words)
Common example
acquaintances
Rare example
nonmainstream
Doubled letters
4
Ending in S
8
Most frequent letter
N (15)

Questions

How many 13-letter words matching ____ai_______ are there?

15. 4 of them are common words.

What is a common example?

ACQUAINTANCES is among the common words in this set.