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Is SISS a valid Scrabble word?

Yes, SISS is a valid word in UK Scrabble, worth 4 points.It is not valid in US Scrabble.

Base score before bonus squares; blank tiles score zero.

What does SISS mean?

  1. verb

    express or utter with a hiss

  2. verb

    make a sharp hissing sound, as if to show disapproval

Definitions from WordNet 3.1, Princeton University.

Points

4

Scrabble

—

Words With Friends

4

Letters

S (1) + I (1) + S (1) + S (1) = 4 points in Scrabble.

Dictionary status

  • Scrabble (US & Canada)Invalid
  • Scrabble (UK & worldwide)Valid
  • Words With FriendsNot listed

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 SISS

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

Front hooks0

None — nothing can be added to the front.

Back hooks1

Words you can make from SISS

The 3 highest-scoring words using these letters.

Study SISS and related words

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