countdown

noun

count·​down ˈkau̇nt-ˌdau̇n How to pronounce countdown (audio)
Synonyms of countdownnext
: 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.
The match opened with a very American, rocket-launch-style countdown. Bryan Preston, FOXNews.com, 20 June 2026 Isar officials attributed the problem to a delay earlier in the countdown caused by an unauthorized boat in restricted waters along the rocket’s flight path. Stephen Clark, ArsTechnica, 19 June 2026 There's also a separate Photobooth option, which works much like a classic photo booth, taking four pictures on its own timing, complete with a countdown, then showing you the strip of four. M. David Stone, PC Magazine, 19 June 2026 The countdown feature gives parents a clearer sense of how much time is left. Wyles Daniel, USA Today, 18 June 2026 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 21 Jun. 2026.

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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