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Is OS a valid Scrabble word?

Yes, OS is a valid word in US Scrabble and UK Scrabble, worth 2 points.

Base score before bonus squares; blank tiles score zero.

What does OS mean?

  1. noun

    a mouth or mouthlike opening

  2. noun

    a hard brittle blue-grey or blue-black metallic element that is one of the platinum metals; the heaviest metal known

  3. noun

    (computer science) software that controls the execution of computer programs and may provide various services

  4. noun

    the left eye

Definitions from WordNet 3.1, Princeton University.

Points

2

Scrabble

2

Words With Friends

2

Letters

O (1) + S (1) = 2 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 OS

Single letters that turn OS into another valid word in US Scrabble. Hooks let you extend a word already on the board.

Front hooks11

Back hooks1

Anagrams of OS

Words that use exactly the same letters.

Words you can make from OS

The 1 highest-scoring words using these letters.

Study OS and related words

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