13-Letter Words Matching _O_______P___

There are 19 13-letter words that match _O_______P___. 4 are common words, such as BOOTSTRAPPING and COLONOSCOPIES. A rarer one is SOMATOTROPINS. In this set, I is the most frequent open letter (17 words). 8 words contain a doubled letter.

Full list 19

bootstrappingcolonoscopieshorsewhippingmousetrappinggonadotropinsgoosesteppinghomolographicnondescriptlyzoogeographerzoogeographiccontainerportgonadotrophicgonadotrophinhoneycreepershorsewhipperspolarographicpostepilepticsomatotrophinsomatotropins

About this list

Words
19 (4 common words)
Common example
bootstrapping
Rare example
somatotropins
Doubled letters
8
Ending in S
5
Most frequent letter
I (17)

Questions

How many 13-letter words matching _o_______p___ are there?

19. 4 of them are common words.

What is a common example?

BOOTSTRAPPING is among the common words in this set.