15-Letter Words Matching H________I_____

There are 22 15-letter words that match H________I_____. 5 are common words, such as HUMANITARIANISM and HYPERCRITICALLY. A rarer one is HYPERSENSITIZES. In this set, T is the most frequent open letter (19 words). 10 words contain a doubled letter.

Full list 22

humanitarianismhypercriticallyhyperventilatedhyperventilateshypothyroidismshereditarianismhermeneuticallyholographicallyhomeopathicallyhydrocortisoneshydrostaticallyheliometricallyhemagglutinatedhemagglutinateshemodynamicallyhexosaminidaseshistochemicallyhistophysiologyhypercriticismshyperfastidioushypersensitizedhypersensitizes

About this list

Words
22 (5 common words)
Common example
humanitarianism
Rare example
hypersensitizes
Doubled letters
10
Ending in S
8
Most frequent letter
T (19)

Questions

How many 15-letter words matching h________i_____ are there?

22. 5 of them are common words.

What is a common example?

HUMANITARIANISM is among the common words in this set.