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Is SINISTER a valid Scrabble word?

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

Base score before bonus squares; blank tiles score zero.

What does SINISTER mean?

  1. adjective

    threatening or foreshadowing evil or tragic developments

    “a baleful look”

  2. adjective

    stemming from evil characteristics or forces; wicked or dishonorable

    “black deeds”

  3. adjective

    on or starting from the wearer's left

    “bar sinister”

Definitions from WordNet 3.1, Princeton University.

Points

Scrabble
8
Words With Friends
9
Letters
8

S (1) + I (1) + N (1) + I (1) + S (1) + T (1) + E (1) + R (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 SINISTER

SINISTER has no one-letter front or back hooks in US Scrabble. Adding a single letter to either end does not make another word in that list.

Front hooks0

None. Nothing can be added to the front.

Back hooks0

None. Nothing can be added to the end.

Anagrams of SINISTER

Words that use exactly the same letters.

Words you can make from SINISTER

The 60 highest-scoring words using these letters.

Study SINISTER and related words

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