15-Letter Words Matching __O_I__________

There are 18 15-letter words that match __O_I__________. 2 are common words, such as PROFITABILITIES and PROHIBITIONISTS. A rarer one is PROXIMATENESSES. In this set, R is the most frequent open letter (17 words). 9 words contain a doubled letter.

Full list 18

profitabilitiesprohibitionistschoriocarcinomaodoriferousnessprohibitivenesspromiscuousnessapolipoproteinscholinergicallycholinesteraseschorioallantoicchorioallantoisemotionlessnessfloriculturistsfloriferousnessovoviviparouslyprovincialitiesprovincializingproximatenesses

About this list

Words
18 (2 common words)
Common example
profitabilities
Rare example
proximatenesses
Doubled letters
9
Ending in S
13
Most frequent letter
R (17)

Questions

How many 15-letter words matching __o_i__________ are there?

18. 2 of them are common words.

What is a common example?

PROFITABILITIES is among the common words in this set.