9-Letter Words Matching ____RH___

There are 21 9-letter words that match ____RH___. 8 are common words, such as DIARRHEAS and DIARRHOEA. A rarer one is SUPERHYPE. In this set, E is the most frequent open letter (20 words). 8 words contain a doubled letter.

Full list 21

diarrheasdiarrhoeapyorrheaspyorrhoeaspearheadsuperherounderhandwaterholeafterheatdiarrhealdiarrheicpyorrhealriverheadscirrhousstairheadsuperheatunderhungdakerhensmonorhymesuperhitssuperhype

About this list

Words
21 (8 common words)
Common example
diarrheas
Rare example
superhype
Doubled letters
8
Ending in S
5
Most frequent letter
E (20)

Questions

How many 9-letter words matching ____rh___ are there?

21. 8 of them are common words.

What is a common example?

DIARRHEAS is among the common words in this set.