15-Letter Words Matching ________O_E____

There are 18 15-letter words that match ________O_E____. 5 are common words, such as CONFECTIONERIES and HALLUCINOGENICS. A rarer one is TROUBLESOMENESS. In this set, R is the most frequent open letter (16 words). 9 words contain a doubled letter.

Full list 18

confectionerieshallucinogenicsquarrelsomenessunwholesomenessventuresomenessinterferometersinterferometricmorphophonemicsstereoisomerismcountermovementcytophotometricdiffractometersdiffractometricerythropoietinsintervalometersnincompooperiesscintillometerstroublesomeness

About this list

Words
18 (5 common words)
Common example
confectioneries
Rare example
troublesomeness
Doubled letters
9
Ending in S
13
Most frequent letter
R (16)

Questions

How many 15-letter words matching ________o_e____ are there?

18. 5 of them are common words.

What is a common example?

CONFECTIONERIES is among the common words in this set.