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Is CORNERSTONE a valid Scrabble word?

Yes, CORNERSTONE is a valid word in US Scrabble and UK Scrabble, worth 13 points.

Base score before bonus squares; blank tiles score zero.

What does CORNERSTONE mean?

  1. noun

    the fundamental assumptions from which something is begun or developed or calculated or explained

    “the whole argument rested on a basis of conjecture”

  2. noun

    a stone in the exterior of a large and important building; usually carved with a date and laid with appropriate ceremonies

  3. noun

    a stone at the outer corner of two intersecting masonry walls

Definitions from WordNet 3.1, Princeton University.

Points

Scrabble
13
Words With Friends
16
Letters
11

C (3) + O (1) + R (1) + N (1) + E (1) + R (1) + S (1) + T (1) + O (1) + N (1) + E (1) = 13 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 CORNERSTONE

Single letters that turn CORNERSTONE 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

Anagrams of CORNERSTONE

Words that use exactly the same letters.

Words you can make from CORNERSTONE

The 60 highest-scoring words using these letters.

Study CORNERSTONE and related words

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