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Is IODOPSIN a valid Scrabble word?

Yes, IODOPSIN is a valid word in US Scrabble and UK Scrabble, worth 11 points.

Base score before bonus squares; blank tiles score zero.

What does IODOPSIN mean?

  1. noun

    a violet photopigment in the retinal cones of the eyes of most vertebrates; plays a role in daylight vision

Definitions from WordNet 3.1, Princeton University.

Points

11

Scrabble

13

Words With Friends

8

Letters

I (1) + O (1) + D (2) + O (1) + P (3) + S (1) + I (1) + N (1) = 11 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 IODOPSIN

Single letters that turn IODOPSIN 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 IODOPSIN

The 60 highest-scoring words using these letters.

Study IODOPSIN and related words

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