15-Letter Words Matching I_______N______

There are 16 15-letter words that match I_______N______. 10 are common words, such as INDOCTRINATIONS and INSTANTANEOUSLY. A rarer one is INTERTWINEMENTS. 4 words contain a doubled letter.

Full list 16

indoctrinationsinstantaneouslyinstrumentalistinstrumentalityinstrumentationinsubstantiallyinterchangeableinterchangeablyinterconnectinginterconnectionincoordinationsinhomogeneitiesinstrumentalismintrapreneurialinstantaneitiesintertwinements

About this list

Words
16 (10 common words)
Common example
indoctrinations
Rare example
intertwinements
Doubled letters
4
Ending in S
5

Questions

How many 15-letter words matching i_______n______ are there?

16. 10 of them are common words.

What is a common example?

INDOCTRINATIONS is among the common words in this set.