11-Letter Words Matching _H_____H___

There are 20 11-letter words that match _H_____H___. 6 are common words, such as CHLOROPHYLL and CHLOROPHYLS. A rarer one is THOROUGHPIN. 2 words contain a doubled letter.

Full list 20

chlorophyllchlorophylstheosophiestheosophistthoroughestthunderheadchemospherechordophonechromophorechuckleheadphotospherethallophytethermophilethermophonechamaephytechowderheadchromophobechrysophyterhizospherethoroughpin

About this list

Words
20 (6 common words)
Common example
chlorophyll
Rare example
thoroughpin
Doubled letters
2
Ending in S
2

Questions

How many 11-letter words matching _h_____h___ are there?

20. 6 of them are common words.

What is a common example?

CHLOROPHYLL is among the common words in this set.