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Is ASTHENOSPHERE a valid Scrabble word?

Yes, ASTHENOSPHERE is a valid word in US Scrabble and UK Scrabble, worth 21 points.

Base score before bonus squares; blank tiles score zero.

What does ASTHENOSPHERE mean?

  1. noun

    the lower layer of the crust

Definitions from WordNet 3.1, Princeton University.

Points

21

Scrabble

21

Words With Friends

13

Letters

A (1) + S (1) + T (1) + H (4) + E (1) + N (1) + O (1) + S (1) + P (3) + H (4) + E (1) + R (1) + E (1) = 21 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 ASTHENOSPHERE

Single letters that turn ASTHENOSPHERE 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

Words you can make from ASTHENOSPHERE

The 60 highest-scoring words using these letters.

Study ASTHENOSPHERE and related words

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