14-Letter Words Matching O__________O__

There are 22 14-letter words that match O__________O__. 3 are common words, such as ORCHESTRATIONS and ORNAMENTATIONS. A rarer one is OVERSECRETIONS. In this set, S is the most frequent open letter (21 words). 3 words contain a doubled letter.

Full list 22

orchestrationsornamentationsoversuspiciousophthalmoscopeophthalmoscopyorobanchaceousotolaryngologyoverburdensomeoverfastidiousoverscrupulousoversolicitousovervaluationsoctodecillionsosmoregulatoryoverassertionsoverattentionsovereducationsoverexpansionsoverextensionsoverinflationsovernutritionsoversecretions

About this list

Words
22 (3 common words)
Common example
orchestrations
Rare example
oversecretions
Doubled letters
3
Ending in S
17
Most frequent letter
S (21)

Questions

How many 14-letter words matching o__________o__ are there?

22. 3 of them are common words.

What is a common example?

ORCHESTRATIONS is among the common words in this set.