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Is FIBRILLATIONS a valid Scrabble word?

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

Base score before bonus squares; blank tiles score zero.

What does FIBRILLATIONS mean?

Fibrillations is a form of FIBRILLATION.

  1. noun

    muscular twitching involving individual muscle fibers acting without coordination

  2. noun

    act or process of forming fibrils

Definitions from WordNet 3.1, Princeton University.

Points

18

Scrabble

22

Words With Friends

13

Letters

F (4) + I (1) + B (3) + R (1) + I (1) + L (1) + L (1) + A (1) + T (1) + I (1) + O (1) + N (1) + S (1) = 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 FIBRILLATIONS

FIBRILLATIONS has no one-letter front or back hooks in US Scrabble. Adding a single letter to either end does not make another word in that list.

Front hooks0

None — nothing can be added to the front.

Back hooks0

None — nothing can be added to the end.

Words you can make from FIBRILLATIONS

The 60 highest-scoring words using these letters.

Study FIBRILLATIONS and related words

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