9-Letter Words Matching _____P_O_

There are 18 9-letter words that match _____P_O_. 3 are common words, such as PRECEPTOR and TURBOPROP. A rarer one is SUPERPROS. In this set, R is the most frequent open letter (14 words). 6 words contain a doubled letter.

Full list 18

preceptorturbopropwhirlpooldisruptorectropiongrassplotmisemploypreemptorreceiptorsoupspoonunderplotunderpropcockapooscorruptorentropionexcerptormultipionsuperpros

About this list

Words
18 (3 common words)
Common example
preceptor
Rare example
superpros
Doubled letters
6
Ending in S
2
Most frequent letter
R (14)

Questions

How many 9-letter words matching _____p_o_ are there?

18. 3 of them are common words.

What is a common example?

PRECEPTOR is among the common words in this set.