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Is RATIONALISATION a valid Scrabble word?

Yes, RATIONALISATION is a valid word in US Scrabble and UK Scrabble, worth 15 points.

Base score before bonus squares; blank tiles score zero.

What does RATIONALISATION mean?

  1. noun

    (psychiatry) a defense mechanism by which your true motivation is concealed by explaining your actions and feelings in a way that is not threatening

  2. noun

    the cognitive process of making something seem consistent with or based on reason

  3. noun

    (mathematics) the simplification of an expression or equation by eliminating radicals without changing the value of the expression or the roots of the equation

  4. noun

    the organization of a business according to scientific principles of management in order to increase efficiency

Definitions from WordNet 3.1, Princeton University.

Points

15

Scrabble

—

Words With Friends

15

Letters

R (1) + A (1) + T (1) + I (1) + O (1) + N (1) + A (1) + L (1) + I (1) + S (1) + A (1) + T (1) + I (1) + O (1) + N (1) = 15 points in Scrabble.

Dictionary status

  • Scrabble (US & Canada)Valid
  • Scrabble (UK & worldwide)Valid
  • 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 RATIONALISATION

RATIONALISATION 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 RATIONALISATION

The 60 highest-scoring words using these letters.

Study RATIONALISATION and related words

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