12-Letter Words Matching ___I__O_____

There are 71 12-letter words that match ___I__O_____. 27 are common words, such as ADDITIONALLY and ANTIABORTION. A rarer one is VEXILLOLOGIC. In this set, I is the most frequent open letter (45 words). 20 words contain a doubled letter.

Full list 71

Common words

additionallyantiabortionantiphonallyaudiologicalaudiologistsclairvoyanceclairvoyantsindissolubleindissolublymisinformingoscilloscopeperiodontics
additionallyantiabortionantiphonallyaudiologicalaudiologistsclairvoyanceclairvoyantsindissolubleindissolublymisinformingoscilloscopeperiodonticsperiodontistradiologistsreciprocallyreciprocatedreciprocatesrediscoveredredissolvingrevisionismsrevisionistssemitropicalsociologicalsociologistsundiplomaticundiscoveredunhistoricalbasidiosporecarillonneurconidiophoreequiprobablehemichordatejurisconsultornithologicornithomancyoscillogramsoscillographpositionallyradiologicalreciprocatorreligionistsschistosomessemiologicalvolitionallyafficionadosambitionlessanticlottingantieconomicantiglobulinantiozonantsantiviolencecarillonningcleistogamiccodiscoveredcodiscovererdivisionismsdivisionistshagiologicalmeningococcimeridionallyornithoptersperichondralperichondriapositroniumsrediscountedreligionlessschistosomalsemiologistssociologesessphingosinesvexillologic

About this list

Words
71 (27 common words)
Common example
additionally
Rare example
vexillologic
Doubled letters
20
Ending in S
22
Most frequent letter
I (45)

Questions

How many 12-letter words matching ___i__o_____ are there?

71. 27 of them are common words.

What is a common example?

ADDITIONALLY is among the common words in this set.