15-Letter Words Matching ___OP__________

There are 12 15-letter words that match ___OP__________. 2 are common words, such as MONOPOLIZATIONS and UNSOPHISTICATED. A rarer one is UNCOPYRIGHTABLE. 4 words contain a doubled letter.

Full list 12

monopolizationsunsophisticatedhypopituitarismsycophanticallyzygophyllaceouscryoprotectantscytophotometriccytoplasmicallyendoparasitismsmonopropellantssuboptimizationuncopyrightable

About this list

Words
12 (2 common words)
Common example
monopolizations
Rare example
uncopyrightable
Doubled letters
4
Ending in S
5

Questions

How many 15-letter words matching ___op__________ are there?

12. 2 of them are common words.

What is a common example?

MONOPOLIZATIONS is among the common words in this set.