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Is PROTEROZOIC a valid Scrabble word?

Yes, PROTEROZOIC is a valid word in US Scrabble, worth 24 points.It is not valid in UK Scrabble.

Base score before bonus squares; blank tiles score zero.

What does PROTEROZOIC mean?

  1. noun

    from 2,500 to 544 million years ago; bacteria and fungi; primitive multicellular organisms

  2. adjective

    formed in the later of two divisions of the Precambrian era

    “proterozoic life forms”

Definitions from WordNet 3.1, Princeton University.

Points

24

Scrabble

—

Words With Friends

11

Letters

P (3) + R (1) + O (1) + T (1) + E (1) + R (1) + O (1) + Z (10) + O (1) + I (1) + C (3) = 24 points in Scrabble.

Dictionary status

  • Scrabble (US & Canada)Valid
  • Scrabble (UK & worldwide)Invalid
  • 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 PROTEROZOIC

PROTEROZOIC 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.

Words you can make from PROTEROZOIC

The 60 highest-scoring words using these letters.

Study PROTEROZOIC and related words

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