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Is CARBONIFEROUS a valid Scrabble word?

Yes, CARBONIFEROUS is a valid word in US Scrabble and UK Scrabble, worth 20 points.

Base score before bonus squares; blank tiles score zero.

What does CARBONIFEROUS mean?

  1. noun

    from 345 million to 280 million years ago

  2. adjective

    of or relating to the Carboniferous geologic era

    “carboniferous rock system”

  3. adjective

    relating to or consisting of or yielding carbon

Definitions from WordNet 3.1, Princeton University.

Points

20

Scrabble

24

Words With Friends

13

Letters

C (3) + A (1) + R (1) + B (3) + O (1) + N (1) + I (1) + F (4) + E (1) + R (1) + O (1) + U (1) + S (1) = 20 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 CARBONIFEROUS

CARBONIFEROUS 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 CARBONIFEROUS

The 60 highest-scoring words using these letters.

Study CARBONIFEROUS and related words

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