Definition of countdown in English:

countdown

Syllabification: count·down
Pronunciation: /ˈkountˌdoun
 
/

noun

[usually in singular]
  • 1An act of counting numerals in reverse order to zero, especially to time the last seconds before the launching of a rocket or missile: the launch crews would begin their final countdown
    More example sentences
    • In Florida today, NASA beginning its countdown for the first space shuttle launch since the Columbia disaster more than two years ago.
    • A series of meetings will take place Thursday to discuss the problem and determine the steps necessary to get back into the launch countdown.
    • Dr. Kraft worked to develop the countdown, launch, and flight procedures, as well as the design of Mission Control itself at the Cape and later in Houston.
  • 1.1 (often countdown to) The final moments before a significant event and the procedures carried out during this time: it is hard to imagine the countdown to war continuing without an intensification of diplomacy
    More example sentences
    • As the countdown to war continues Britain can be expected to contribute at least 12,000 troops as well as RAF, Navy and Special Forces units.
    • He was forced to redraft this advice as the countdown to war continued.
    • We are fast approaching the countdown to our big event.
  • 1.2A digital display that counts down.
    More example sentences
    • I will never employ any device with a digital countdown.
    • I notice a digital countdown projected below the Napoleon-guy: 1.69, and quickly descending.
    • A countdown is displayed over the grenade, and you see the exact trajectory it will take.

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