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  • heads up
    heads up
    interjection
    (used to call attention to an impending danger or the need for immediate alertness.)
  • heads-up
    heads-up
    adjective
    quick to grasp a situation and take advantage of opportunities; alert; resourceful.
Synonyms

heads up

1 American  

interjection

  1. (used to call attention to an impending danger or the need for immediate alertness.)


heads-up 2 American  
[hedz-uhp] / ˈhɛdzˌʌp /

adjective

  1. quick to grasp a situation and take advantage of opportunities; alert; resourceful.


noun

heads-ups plural
  1. a warning in advance.

    sending a heads-up to the Pentagon about possible attacks.

heads up British  

noun

  1. a tip-off or small amount of information given in advance

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

heads up Idioms  
  1. A warning to watch out for potential danger, as in Heads up, that tree is coming down now! The expression is generally in the form of an interjection. [c. 1940]


Usage

What does heads-up mean? As an exclamation, Heads up! is used to call attention to danger or another important matter. As a basic noun, a heads-up is an advance notice or warning.

Other Word Forms

Noun Inflected Forms

Etymology

Origin of heads up1

First recorded in 1940–45

Origin of heads-up2

First recorded in 1945–50

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

This is your secret weapon — though heads up, it isn’t compatible with Dedicated IP, Onion Over VPN, or P2P servers.

From Salon • Jun. 2, 2026

The heads up of a possible U.K. sale of assets would have allowed Epstein to possibly trade on the information.

From The Wall Street Journal • Feb. 23, 2026

It feels a little bit like Skynet giving us a heads up before incinerating the atmosphere, but I’ll take it.

From Slate • Feb. 8, 2026

“I thought, ‘OK, I’m just going to give them a little heads up of what the film’s actually about.’

From Los Angeles Times • Jan. 30, 2026

The grass was tall and turning brown, but a few wildflowers still poked their heads up above the meadow.

From "The Lions of Little Rock" by Kristin Levine

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