13-Letter Words Matching ________H_R__

There are 18 13-letter words that match ________H_R__. 5 are common words, such as GRANDFATHERED and GRANDFATHERLY. A rarer one is THERMOSPHERIC. In this set, E is the most frequent open letter (17 words). 0 words contain a doubled letter.

Full list 18

grandfatheredgrandfatherlygrandmotherlystratospheresstratosphericaluminothermyblastospherescephalothoraxconidiophorescounterchargeelectrophorusmastigophoransiphonophoresthermosphereschromosphereschromosphericpoikilothermsthermospheric

About this list

Words
18 (5 common words)
Common example
grandfathered
Rare example
thermospheric
Doubled letters
0
Ending in S
8
Most frequent letter
E (17)

Questions

How many 13-letter words matching ________h_r__ are there?

18. 5 of them are common words.

What is a common example?

GRANDFATHERED is among the common words in this set.