Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun A gesture signifying approval or okay; a thumb pointing up out of a fist.
  • noun idiomatic An approval or okay.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

With reference to the signal of approval or disapproval used by spectators at a Roman amphitheatre, but sense has been reversed.

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Examples

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Comments

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  • "Good to go" sign from marshaller followed by a salute as you taxi out into the taxiway for takeoff (military procedures).

    February 22, 2007