12-Letter Words Containing ONP

There are 18 12-letter words that contain ONP. 6 are common words, such as COMMONPLACES and NONPARALLELS. A rarer one is NONPURPOSIVE. 4 words contain a doubled letter.

Full list 18

commonplacesnonparallelsnonpartisansnonpoisonousnonpoliticalnonpollutingnonparasiticnonpermanentnonpermeablenonpasserinenonperformernonpetroleumnonphosphatenonphysiciannonpracticalnonproducingnonpsychoticnonpurposive

About this list

Words
18 (6 common words)
Common example
commonplaces
Rare example
nonpurposive
Doubled letters
4
Ending in S
4

Questions

How many 12-letter words containing onp are there?

18. 6 of them are common words.

What is a common example?

COMMONPLACES is among the common words in this set.