11-Letter Words Matching ___I___O___

There are 50 11-letter words that match ___I___O___. 14 are common words, such as BRAINSTORMS and HELIOTROPES. A rarer one is TELIOSPORES. In this set, N is the most frequent open letter (35 words). 7 words contain a doubled letter.

Full list 50

Common words

brainstormsheliotropesnationhoodsnoticeboardpalindromesparishionerplainspokenpolicewomanpolicewomenradiophonesspoilsportsspringboard
brainstormsheliotropesnationhoodsnoticeboardpalindromesparishionerplainspokenpolicewomanpolicewomenradiophonesspoilsportsspringboardundisclosedvaricoloredpalindromicaeciosporesantialcoholantiheroineantimitoticantistrophedecillionthheliotropinnonillionthoctillionthpediculosespediculosisradiationalradiophonicradioscopicsinistrorsespringhousestrikeboundstringboardtoxicologicundiagnosedvariationalantitumoralechinococciequicalorichagioscopeshagioscopicheliotropicmediationalmeningiomasminischoolspleiotropicradiophotosschizogonicspringwoodsteliospores

About this list

Words
50 (14 common words)
Common example
brainstorms
Rare example
teliospores
Doubled letters
7
Ending in S
15
Most frequent letter
N (35)

Questions

How many 11-letter words matching ___i___o___ are there?

50. 14 of them are common words.

What is a common example?

BRAINSTORMS is among the common words in this set.