5 Letter Words With IO (70 Words)

Common 5-letter words that contain IO

With their Scrabble points and, for the first 16, a short meaning, most used first.

audio★6sound reception or transmission
radio★6medium for communication
union★5a number of persons, parties, or political entities united for a common purpose
prior★7earlier in time
ratio★5a proportional relationship
patio★7an outdoor paved area adjoining a house
lions★5a large, carnivorous feline mammal
onion★5the edible bulb of a cultivated herb
idiot★6a mentally deficient person
viola★8a stringed instrument
scion★7a child or descendant
diode★7a type of electron tube
folio★8to number the pages of
kiosk★13an open booth
ionic★7pertaining to or using ions
axiom★14a self-evident truth

70 of the 12,982 5-letter words contain IO (1%).
53 are good in NWL2023, 70 in Collins Scrabble Words, 53 in WOW24 and 51 in the Words With Friends list. 18 are everyday words.
In Scrabble points, axiom scores the most (14), then kiosk (13), then rioja and axion (12 each), then whios (11).