What does ‘a grey area’ mean?

To “a grey area” means to something that isn't clearly right or wrong. A modern idiom, not in Brewer's 1898; the image is of a shade between black and white.

Origin

  • A modern idiom, not in Brewer's 1898; the image is of a shade between black and white.

How to use it

  • Common in ethical, legal, and policy discussion.
  • Example: That expense is a grey area under the rules.

Source:

Last verified: 2026-07-18

  • Definitions and origins are drawn from public-domain reference works, primarily Brewer's Dictionary of Phrase and Fable (1898), with modern usage notes clearly marked.

View as .md