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Is CATACLYSM a valid Scrabble word?

Yes, CATACLYSM is a valid word in US Scrabble and UK Scrabble, worth 18 points.

Base score before bonus squares; blank tiles score zero.

What does CATACLYSM mean?

  1. noun

    a sudden violent change in the earth's surface

  2. noun

    an event resulting in great loss and misfortune

    “the whole city was affected by the irremediable calamity”

Definitions from WordNet 3.1, Princeton University.

Points

18

Scrabble

21

Words With Friends

9

Letters

C (3) + A (1) + T (1) + A (1) + C (3) + L (1) + Y (4) + S (1) + M (3) = 18 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 CATACLYSM

Single letters that turn CATACLYSM 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 CATACLYSM

The 60 highest-scoring words using these letters.

Study CATACLYSM and related words

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