from Wiktionary, Creative Commons Attribution/Share-Alike License

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


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


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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