15-Letter Words Matching ___O________N__

There are 14 15-letter words that match ___O________N__. 4 are common words, such as ACCOMPLISHMENTS and IMPOVERISHMENTS. A rarer one is RUMORMONGERINGS. 7 words contain a doubled letter.

Full list 14

accomplishmentsimpoverishmentsnonoccupationalrecommencementschlorpromazinesaccommodationalarrondissementscryoprotectantsdemonstrationalhomotransplantsmonopropellantsnonoverlappingsrecombinationalrumormongerings

About this list

Words
14 (4 common words)
Common example
accomplishments
Rare example
rumormongerings
Doubled letters
7
Ending in S
10

Questions

How many 15-letter words matching ___o________n__ are there?

14. 4 of them are common words.

What is a common example?

ACCOMPLISHMENTS is among the common words in this set.