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Is OPERCULUM a valid Scrabble word?

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

Base score before bonus squares; blank tiles score zero.

What does OPERCULUM mean?

  1. noun

    a hard flap serving as a cover for (a) the gill slits in fishes or (b) the opening of the shell in certain gastropods when the body is retracted

Definitions from WordNet 3.1, Princeton University.

Points

15

Scrabble

21

Words With Friends

9

Letters

O (1) + P (3) + E (1) + R (1) + C (3) + U (1) + L (1) + U (1) + M (3) = 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 OPERCULUM

Single letters that turn OPERCULUM 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 OPERCULUM

The 60 highest-scoring words using these letters.

Study OPERCULUM and related words

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