14-Letter Words Matching H__________O__

There are 21 14-letter words that match H__________O__. 4 are common words, such as HALLUCINATIONS and HARMONIZATIONS. A rarer one is HYPOTHECATIONS. In this set, S is the most frequent open letter (19 words). 4 words contain a doubled letter.

Full list 21

hallucinationsharmonizationshybridizationshydrogenationsheterochromousheterophylloushistopathologyhydrocellulosehydrocephaloidhydrocephaloushydrocortisoneharuspicationshellenizationshemimetabolousholometaboloushydroxylationshyperconscioushypereutectoidhyperfunctionshypophysectomyhypothecations

About this list

Words
21 (4 common words)
Common example
hallucinations
Rare example
hypothecations
Doubled letters
4
Ending in S
15
Most frequent letter
S (19)

Questions

How many 14-letter words matching h__________o__ are there?

21. 4 of them are common words.

What is a common example?

HALLUCINATIONS is among the common words in this set.