11-Letter Words Matching H_____P____

There are 15 11-letter words that match H_____P____. 2 are common words, such as HELICOPTERS and HYDROSPHERE. A rarer one is HYPODIPLOID. 1 words contain a doubled letter.

Full list 15

helicoptershydrosphereharrumphingheckelphoneheliosphereheterophonyheterophyteheteropolarhelicoptingheterophileheteroploidhydrospaceshymenopterahyperspaceshypodiploid

About this list

Words
15 (2 common words)
Common example
helicopters
Rare example
hypodiploid
Doubled letters
1
Ending in S
3

Questions

How many 11-letter words matching h_____p____ are there?

15. 2 of them are common words.

What is a common example?

HELICOPTERS is among the common words in this set.