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Is ISOMERASE a valid Scrabble word?

Yes, ISOMERASE is a valid word in US Scrabble and UK Scrabble, worth 11 points.

Base score before bonus squares; blank tiles score zero.

What does ISOMERASE mean?

  1. noun

    an enzyme that catalyzes its substrate to an isomeric form

Definitions from WordNet 3.1, Princeton University.

Points

11

Scrabble

12

Words With Friends

9

Letters

I (1) + S (1) + O (1) + M (3) + E (1) + R (1) + A (1) + S (1) + E (1) = 11 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 ISOMERASE

Single letters that turn ISOMERASE 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 ISOMERASE

The 60 highest-scoring words using these letters.

Study ISOMERASE and related words

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