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Is COSIGN a valid Scrabble word?

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

Base score before bonus squares; blank tiles score zero.

What does COSIGN mean?

  1. verb

    sign jointly

    “Husband and wife co-signed the lease”

  2. verb

    sign and endorse (another person's signature), as for a loan

Definitions from WordNet 3.1, Princeton University.

Points

Scrabble
9
Words With Friends
12
Letters
6

C (3) + O (1) + S (1) + I (1) + G (2) + N (1) = 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 COSIGN

Single letters that turn COSIGN 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 COSIGN

Words that use exactly the same letters.

Words you can make from COSIGN

The 51 highest-scoring words using these letters.

Study COSIGN and related words

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