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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

Scrabble
24
Words With Friends
n/a
Letters
11

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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