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Is OPTIMUM a valid Scrabble word?

Yes, OPTIMUM is a valid word in US Scrabble and UK Scrabble, worth 13 points.

Base score before bonus squares; blank tiles score zero.

What does OPTIMUM mean?

  1. adjective

    most desirable possible under a restriction expressed or implied

    “an optimum return on capital”

  2. noun

    most favorable conditions or greatest degree or amount possible under given circumstances

Definitions from WordNet 3.1, Princeton University.

Points

13

Scrabble

17

Words With Friends

7

Letters

O (1) + P (3) + T (1) + I (1) + M (3) + U (1) + M (3) = 13 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 OPTIMUM

Single letters that turn OPTIMUM 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 OPTIMUM

The 48 highest-scoring words using these letters.

Study OPTIMUM and related words

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