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Is IRRADIATION a valid Scrabble word?

Yes, IRRADIATION is a valid word in US Scrabble and UK Scrabble, worth 12 points.

Base score before bonus squares; blank tiles score zero.

What does IRRADIATION mean?

  1. noun

    the condition of being exposed to radiation

  2. noun

    a column of light (as from a beacon)

  3. noun

    (physiology) the spread of sensory neural impulses in the cortex

  4. noun

    the apparent enlargement of a bright object when viewed against a dark background

Definitions from WordNet 3.1, Princeton University.

Points

12

Scrabble

13

Words With Friends

11

Letters

I (1) + R (1) + R (1) + A (1) + D (2) + I (1) + A (1) + T (1) + I (1) + O (1) + N (1) = 12 points in Scrabble.

Dictionary status

  • Scrabble (US & Canada)Valid
  • Scrabble (UK & worldwide)Valid
  • Words With FriendsListed

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 IRRADIATION

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

Front hooks0

None — nothing can be added to the front.

Back hooks1

Words you can make from IRRADIATION

The 60 highest-scoring words using these letters.

Study IRRADIATION and related words

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