12-Letter Words Matching ___I____H___

There are 18 12-letter words that match ___I____H___. 3 are common words, such as BRAINWASHING and CITIZENSHIPS. A rarer one is TRAINEESHIPS. In this set, I is the most frequent open letter (16 words). 2 words contain a doubled letter.

Full list 18

brainwashingcitizenshipsunlikelihoodconidiophorehemimorphitepericynthionperionychiumserigraphiesantilynchingantipoachingartisanshipsbrainwashershemimorphismmonitorshipsperitrichousserigrapherssquirarchiestraineeships

About this list

Words
18 (3 common words)
Common example
brainwashing
Rare example
traineeships
Doubled letters
2
Ending in S
9
Most frequent letter
I (16)

Questions

How many 12-letter words matching ___i____h___ are there?

18. 3 of them are common words.

What is a common example?

BRAINWASHING is among the common words in this set.