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Is PROTACTINIUMS a valid Scrabble word?

Yes, PROTACTINIUMS is a valid word in US Scrabble and UK Scrabble, worth 19 points.

Base score before bonus squares; blank tiles score zero.

What does PROTACTINIUMS mean?

Protactiniums is a form of PROTACTINIUM.

  1. noun

    a short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead

Definitions from WordNet 3.1, Princeton University.

Points

Scrabble
19
Words With Friends
24
Letters
13

P (3) + R (1) + O (1) + T (1) + A (1) + C (3) + T (1) + I (1) + N (1) + I (1) + U (1) + M (3) + S (1) = 19 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 PROTACTINIUMS

PROTACTINIUMS 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 PROTACTINIUMS

The 60 highest-scoring words using these letters.

Study PROTACTINIUMS and related words

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