12-Letter Words Matching ____O_N_____

There are 41 12-letter words that match ____O_N_____. 22 are common words, such as BOUTONNIERES and BUFFOONERIES. A rarer one is RENCOUNTERED. In this set, E is the most frequent open letter (37 words). 21 words contain a doubled letter.

Full list 41

Common words

boutonnieresbuffooneriescallownessescommonnessescompoundabledisconnecteddisjointedlyhollownesseslegionnairesmellownessesnarrownessesphotoengrave
boutonnieresbuffooneriescallownessescommonnessescompoundabledisconnecteddisjointedlyhollownesseslegionnairesmellownessesnarrownessesphotoengraveprecognitionprecognitiveprofoundnessrandomnessessallownessessurmountablesurroundingsviscountcieswantonnessesyellownessesconfoundedlydiscountabledismountablepronouncedlycartoonishlyfallownessesfestoonerieslampooneriesmicroanalystmicroanatomymicroinjectsmisconnectedneuroanatomynoncognitivenoncountriesoutgoingnessoverornamentphotoinducedrencountered

About this list

Words
41 (22 common words)
Common example
boutonnieres
Rare example
rencountered
Doubled letters
21
Ending in S
21
Most frequent letter
E (37)

Questions

How many 12-letter words matching ____o_n_____ are there?

41. 22 of them are common words.

What is a common example?

BOUTONNIERES is among the common words in this set.