countdown

noun

count·​down ˈkau̇nt-ˌdau̇n How to pronounce countdown (audio)
: an audible backward counting in fixed units (such as seconds) from an arbitrary starting number to mark the time remaining before an event
also : preparations carried on during such a count
count down intransitive verb

Examples of countdown in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
With the countdown within 45 minutes of launch, NASA called off an attempt to launch the next crew to the International Space Station Thursday evening to allow more time to troubleshoot a ground system hydraulics issue. William Harwood, CBS News, 12 Mar. 2025 These issues didn't stop the countdown for long, but computers detected more problems, leading SpaceX to decide to delay the launch further. Tommy Tuberville, Newsweek, 6 Mar. 2025 But in recent years, several organizations have set shorter — and seemingly arbitrary — countdown clocks. Brian M. Rosenthal, New York Times, 26 Feb. 2025 After a 10-second countdown, the answer is revealed along with a QR code that directs to Vulture's site. Kerry Flynn, Axios, 26 Feb. 2025 See All Example Sentences for countdown

Word History

First Known Use

circa 1952, in the meaning defined above

Time Traveler
The first known use of countdown was circa 1952

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Cite this Entry

“Countdown.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/countdown. Accessed 17 Mar. 2025.

Kids Definition

countdown

noun
count·​down ˈkau̇nt-ˌdau̇n How to pronounce countdown (audio)
: the process of counting off backward in fixed units (as seconds) the time remaining before an event (as the launching of a rocket)

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