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Is MESOSPHERE a valid Scrabble word?

Yes, MESOSPHERE is a valid word in US Scrabble and UK Scrabble, worth 17 points.

Base score before bonus squares; blank tiles score zero.

What does MESOSPHERE mean?

  1. noun

    the atmospheric layer between the stratosphere and the thermosphere

Definitions from WordNet 3.1, Princeton University.

Points

17

Scrabble

18

Words With Friends

10

Letters

M (3) + E (1) + S (1) + O (1) + S (1) + P (3) + H (4) + E (1) + R (1) + E (1) = 17 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 MESOSPHERE

Single letters that turn MESOSPHERE 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 MESOSPHERE

The 60 highest-scoring words using these letters.

Study MESOSPHERE and related words

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