7-Letter Words Matching __IO___

There are 24 7-letter words that match __IO___. 8 are common words, such as ANIONIC and AVIONIC. A rarer one is TRIOXID. In this set, I is the most frequent open letter (12 words). 1 words contain a doubled letter.

Full list 24

anionicavionicbriocheidioticmeiosesmeiosismeioticoriolesopioidsabiosisabioticariososcriollogliomasthionictriodestrioletabiosespriorlythiolicthioninthionyltriosestrioxid

About this list

Words
24 (8 common words)
Common example
anionic
Rare example
trioxid
Doubled letters
1
Ending in S
10
Most frequent letter
I (12)

Questions

How many 7-letter words matching __io___ are there?

24. 8 of them are common words.

What is a common example?

ANIONIC is among the common words in this set.