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Is IO a valid Scrabble word?

Yes, IO is a valid word in UK Scrabble, worth 2 points.It is not valid in US Scrabble.

Base score before bonus squares; blank tiles score zero.

What does IO mean?

  1. noun

    (Greek mythology) a maiden seduced by Zeus; when Hera was about to discover them together Zeus turned her into a white heifer

  2. noun

    the closest of Jupiter's moons; has active volcanoes

Definitions from WordNet 3.1, Princeton University.

Points

2

Scrabble

—

Words With Friends

2

Letters

I (1) + O (1) = 2 points in Scrabble.

Dictionary status

  • Scrabble (US & Canada)Invalid
  • Scrabble (UK & worldwide)Valid
  • Words With FriendsNot listed

Scrabble lists: NWL2023 (US & Canada) and CSW24 (UK & worldwide). WWF uses our ENABLE reference plus verified additions. “Listed” and “Not listed” describe that reference; check acceptance in the game. Sources reviewed 2026-10-03.

Hooks for IO

Single letters that turn IO into another valid word in UK Scrabble. Hooks let you extend a word already on the board.

Front hooks2

Back hooks2

Anagrams of IO

Words that use exactly the same letters.

Words you can make from IO

The 1 highest-scoring words using these letters.

Study IO and related words

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