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Is COSINE a valid Scrabble word?

Yes, COSINE is a valid word in US Scrabble and UK Scrabble, worth 8 points.

Base score before bonus squares; blank tiles score zero.

What does COSINE mean?

  1. noun

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

Definitions from WordNet 3.1, Princeton University.

Points

Scrabble
8
Words With Friends
10
Letters
6

C (3) + O (1) + S (1) + I (1) + N (1) + E (1) = 8 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 COSINE

Single letters that turn COSINE 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 COSINE

Words that use exactly the same letters.

Words you can make from COSINE

The 60 highest-scoring words using these letters.

Study COSINE and related words

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