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Is SUM a valid Scrabble word?

Yes, SUM is a valid word in US Scrabble and UK Scrabble, worth 5 points.

Base score before bonus squares; blank tiles score zero.

What does SUM mean?

  1. noun

    a quantity of money

    “he borrowed a large sum”

  2. noun

    a quantity obtained by the addition of a group of numbers

  3. noun

    the final aggregate

    “the sum of all our troubles did not equal the misery they suffered”

  4. noun

    the choicest or most essential or most vital part of some idea or experience

    “the gist of the prosecutor's argument”

Definitions from WordNet 3.1, Princeton University.

Points

5

Scrabble

7

Words With Friends

3

Letters

S (1) + U (1) + M (3) = 5 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 SUM

Single letters that turn SUM 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 hooks5

Anagrams of SUM

Words that use exactly the same letters.

Words you can make from SUM

The 5 highest-scoring words using these letters.

Study SUM and related words

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