15-Letter Words Matching _________N_I___

There are 21 15-letter words that match _________N_I___. 2 are common words, such as CONCESSIONAIRES and PLENIPOTENTIARY. A rarer one is TRANSPARENTIZES. 9 words contain a doubled letter.

Full list 21

concessionairesplenipotentiarycircumstantiatecommissionairesconsubstantiatehyperextensionsinapprehensibleunconscientiousdedifferentiateelectrowinningsfingerprintingsindifferentismsindifferentistsneuroscientificneuroscientistsprosthodontistsquincentennialsradiostrontiumssemicentennialstransparentizedtransparentizes

About this list

Words
21 (2 common words)
Common example
concessionaires
Rare example
transparentizes
Doubled letters
9
Ending in S
14

Questions

How many 15-letter words matching _________n_i___ are there?

21. 2 of them are common words.

What is a common example?

CONCESSIONAIRES is among the common words in this set.