15-Letter Words Matching ____O_______E__

There are 23 15-letter words that match ____O_______E__. 10 are common words, such as ACKNOWLEDGEMENT and APPROPRIATENESS. A rarer one is SCHLOCKMEISTERS. 12 words contain a doubled letter.

Full list 23

acknowledgementappropriatenessauthoritativelycomfortablenessintrospectivelymicromanagementproportionatelyprovocativenessretrospectivelyunwholesomenesscommonplacenessphenolphthaleinpostoperativelypurposelessnessreproachfulnessresponsiblenessretrogressivelyuncooperativelydichotomousnessmicropublishersopprobriousnessretroperitonealschlockmeisters

About this list

Words
23 (10 common words)
Common example
acknowledgement
Rare example
schlockmeisters
Doubled letters
12
Ending in S
12

Questions

How many 15-letter words matching ____o_______e__ are there?

23. 10 of them are common words.

What is a common example?

ACKNOWLEDGEMENT is among the common words in this set.