Countdown Definition

kountdoun
noun
The schedule of operations just before the firing of a rocket, the detonation of an explosive device, etc.; also, the counting off, in reverse order, of units of time in such a schedule.
Webster's New World

The checks and preparations carried out during this activity.

American Heritage
Synonyms:
  • hold
  • launch procedure
  • final preparations
verb
(nonstandard) To count down.
Wiktionary

Other Word Forms of Countdown

Noun

Singular:
countdown
Plural:
countdowns

Origin of Countdown

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