What is the meaning of heads-up?

noun

  • A warning message.
    • usage: "he sent a heads-up to the District Attorney"

adjective

  • Fully alert and watchful.
    • usage: "played heads-up ball"
WordNet 3.0 © 2006 by Princeton University
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APAWordNet. (2010). heads-up. Retrieved September 20, 2026, from http://smartdefine.org/heads-up/definitions/1175404
ChicagoWordNet. 2010. "heads-up" http://smartdefine.org/heads-up/definitions/1175404 (accessed September 20, 2026).
HarvardWordNet 2010, heads-up, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/heads-up/definitions/1175404>.
MLAWordNet. "heads-up" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/heads-up/definitions/1175404>