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Is COSEC a valid Scrabble word?

Yes, COSEC is a valid word in US Scrabble and UK Scrabble, worth 9 points.

Base score before bonus squares; blank tiles score zero.

What does COSEC mean?

  1. noun

    ratio of the hypotenuse to the opposite side of a right-angled triangle

Definitions from WordNet 3.1, Princeton University.

Points

Scrabble
9
Words With Friends
11
Letters
5

C (3) + O (1) + S (1) + E (1) + C (3) = 9 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 COSEC

Single letters that turn COSEC 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

Anagrams of COSEC

Words that use exactly the same letters.

Words you can make from COSEC

The 12 highest-scoring words using these letters.

Study COSEC and related words

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