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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

Clark, who heads up the California Hospice and Palliative Care Assn., has been struggling to get clarity on the issue.

From Los Angeles Times • Apr. 17, 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

She gave a heads up to several Goldman executives before the Daily Beast published an article in November 2020 revealing she was in the courtroom at Epstein’s 2019 arraignment.

From The Wall Street Journal • Jan. 20, 2026

The simple act of moving their heads up and down, ostensibly for another reason entirely — was sufficient to cause them to recommend a policy that would take money out of their own pockets.

From "The Tipping Point" by Malcolm Gladwell

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