12-Letter Words Matching H________R__

There are 12 12-letter words that match H________R__. 6 are common words, such as HARPSICHORDS and HELICOPTERED. A rarer one is HYMENOPTERON. In this set, O is the most frequent open letter (11 words). 1 words contain a doubled letter.

Full list 12

harpsichordshelicopteredheliocentrichummingbirdshydrosphereshypochondriahydrochlorichydrofluorichymenopteranhomoiothermshydrospherichymenopteron

About this list

Words
12 (6 common words)
Common example
harpsichords
Rare example
hymenopteron
Doubled letters
1
Ending in S
4
Most frequent letter
O (11)

Questions

How many 12-letter words matching h________r__ are there?

12. 6 of them are common words.

What is a common example?

HARPSICHORDS is among the common words in this set.