15-Letter Words Matching _________O____Y

There are 24 15-letter words that match _________O____Y. 8 are common words, such as BIDIRECTIONALLY and INSTITUTIONALLY. A rarer one is UNTRADITIONALLY. 21 words contain a doubled letter.

Full list 24

bidirectionallyinstitutionallyinternationallyprepositionallyunconditionallyunexceptionablyunexceptionallyunintentionallycomputationallycoeducationallycongressionallyconjugationallyconjunctionallydysfunctionallygravitationallyinspirationallyinterpersonallylymphadenopathyobservationallycompositionallyinformationallymicrophotometryorientationallyuntraditionally

About this list

Words
24 (8 common words)
Common example
bidirectionally
Rare example
untraditionally
Doubled letters
21
Ending in S
0

Questions

How many 15-letter words matching _________o____y are there?

24. 8 of them are common words.

What is a common example?

BIDIRECTIONALLY is among the common words in this set.