15-Letter Words Matching _R_____O_______

There are 22 15-letter words that match _R_____O_______. 8 are common words, such as GRANDILOQUENCES and PRAISEWORTHIEST. A rarer one is TRICHOMONACIDES. In this set, I is the most frequent open letter (20 words). 6 words contain a doubled letter.

Full list 22

grandiloquencespraiseworthiestpredispositionsprehistoricallypresuppositionstraditionalismstraditionaliststrinitrotoluenegrandiloquentlytribromoethanoltrinitrobenzenearcheologicallycryptozoologiescryptozoologistkremlinologistsorthophosphatespreperformancesprotozoologiststraditionalizedtraditionalizestrichomonacidaltrichomonacides

About this list

Words
22 (8 common words)
Common example
grandiloquences
Rare example
trichomonacides
Doubled letters
6
Ending in S
12
Most frequent letter
I (20)

Questions

How many 15-letter words matching _r_____o_______ are there?

22. 8 of them are common words.

What is a common example?

GRANDILOQUENCES is among the common words in this set.