13-Letter Words Matching __H____A_____

There are 13 13-letter words that match __H____A_____. 5 are common words, such as COHABITATIONS and ECHOLOCATIONS. A rarer one is OCHLOCRATICAL. In this set, S is the most frequent open letter (12 words). 3 words contain a doubled letter.

Full list 13

cohabitationsecholocationsexhilarationsschoolmarmishschoolmastersephemeralnessethnographersethnographiesinhabitanciesethanolaminesetherizationsinhabitationsochlocratical

About this list

Words
13 (5 common words)
Common example
cohabitations
Rare example
ochlocratical
Doubled letters
3
Ending in S
11
Most frequent letter
S (12)

Questions

How many 13-letter words matching __h____a_____ are there?

13. 5 of them are common words.

What is a common example?

COHABITATIONS is among the common words in this set.