13-Letter Words Matching _____I_O_____

There are 28 13-letter words that match _____I_O_____. 9 are common words, such as GRANDILOQUENT and RADIOISOTOPES. A rarer one is VENTRILOQUIAL. In this set, R is the most frequent open letter (22 words). 2 words contain a doubled letter.

Full list 28

Common words

grandiloquentradioisotopesreinvigoratedreinvigoratessanctimoniousunequivocallyventriloquiesventriloquismventriloquistaneroidographcouncilorshipilluminometer
grandiloquentradioisotopesreinvigoratedreinvigoratessanctimoniousunequivocallyventriloquiesventriloquismventriloquistaneroidographcouncilorshipilluminometerventriloquizeamyloidosisesnonuniformityparasitologicpolyribosomalpolyribosomesprednisolonesradioisotopicreinvigoratorsigmoidoscopysolicitorshipspectinomycinsteroidogenictrichinosisesunequivocablyventriloquial

About this list

Words
28 (9 common words)
Common example
grandiloquent
Rare example
ventriloquial
Doubled letters
2
Ending in S
8
Most frequent letter
R (22)

Questions

How many 13-letter words matching _____i_o_____ are there?

28. 9 of them are common words.

What is a common example?

GRANDILOQUENT is among the common words in this set.