13-Letter Words Matching __I__O_______

There are 32 13-letter words that match __I__O_______. 10 are common words, such as ARISTOCRACIES and REINCORPORATE. A rarer one is UNIDEOLOGICAL. In this set, I is the most frequent open letter (24 words). 4 words contain a doubled letter.

Full list 32

Common words

aristocraciesreincorporatereinforcementsailboardingsseismographerseismographicseismologicalseismologistsuninformativewhippoorwillschiaroscuristdeipnosophist
aristocraciesreincorporatereinforcementsailboardingsseismographerseismographicseismologicalseismologistsuninformativewhippoorwillschiaroscuristdeipnosophistetiologicallygriseofulvinsreimpositionsthigmotropismunimportancesaxiologicallyepizootiologyopinionatedlyorismologicalreimportationreinforceableseismometriesstichomythiasstichomythiestrichologiststrichopteranstrichothecenetriphosphatestriploblasticunideological

About this list

Words
32 (10 common words)
Common example
aristocracies
Rare example
unideological
Doubled letters
4
Ending in S
13
Most frequent letter
I (24)

Questions

How many 13-letter words matching __i__o_______ are there?

32. 10 of them are common words.

What is a common example?

ARISTOCRACIES is among the common words in this set.