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Is ACTINOMETER a valid Scrabble word?

Yes, ACTINOMETER is a valid word in US Scrabble and UK Scrabble, worth 15 points.

Base score before bonus squares; blank tiles score zero.

What does ACTINOMETER mean?

  1. noun

    an instrument for measuring the intensity of electromagnetic radiation (usually by the photochemical effect)

Definitions from WordNet 3.1, Princeton University.

Points

15

Scrabble

18

Words With Friends

11

Letters

A (1) + C (3) + T (1) + I (1) + N (1) + O (1) + M (3) + E (1) + T (1) + E (1) + R (1) = 15 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 ACTINOMETER

Single letters that turn ACTINOMETER 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 ACTINOMETER

The 60 highest-scoring words using these letters.

Study ACTINOMETER and related words

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