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.
When the temperatures begin to drop and the leaves start to change, the countdown to peak fall foliage is on. Lydia Mansel, Travel + Leisure, 27 Sep. 2025 One of the cutest ways to embrace the countdown to October 31st is with a DIY Halloween countdown calendar. Elizabeth Fogarty, Better Homes & Gardens, 24 Sep. 2025 The countdown to Four Seasons’ seafaring debut is on. Nathan Diller, USA Today, 24 Sep. 2025 During this fueling test, the first and second stages of the rocket will be fully loaded with liquid hydrogen and oxygen, and the countdown will be taken down to T-29 seconds. Eric Berger, ArsTechnica, 23 Sep. 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 1 Oct. 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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