13-Letter Words Matching I________O___

There are 17 13-letter words that match I________O___. 7 are common words, such as INFORMATIONAL and INQUISITIONAL. A rarer one is INTRAPERSONAL. 2 words contain a doubled letter.

Full list 17

informationalinquisitionalinspirationalinstitutionalinstructionalinternationalinterpersonalimplicationalincantationalinscriptionalisoelectronicimmigrationalinclinationalinteractionalinterneuronalinterregionalintrapersonal

About this list

Words
17 (7 common words)
Common example
informational
Rare example
intrapersonal
Doubled letters
2
Ending in S
0

Questions

How many 13-letter words matching i________o___ are there?

17. 7 of them are common words.

What is a common example?

INFORMATIONAL is among the common words in this set.