Countdown Meaning and Definition What is the definition Countdown? What is its meaning in the dictionary? Synonyms, Example sentences, Related sentences, How to pronounce? Derivations, Words ending with Countdown, Words starting with Countdown, Antonyms and more... English Dictionary | 26.05.2021 00:42:42 Countdown Meaning and Definition Word: CountdownNounDefinitions:1. An act of counting numerals in reverse order to zero, especially to time the last seconds before the launching of a rocket or missile.Example sentences: "The launch crews would begin their final countdown"Derivations: countingcountKeep in MindImages related to CountdownCountdown in Other Languages...Spanish: German: CountdownFrench: ReboursItalian: RovesciaTurkish: Sayma Related Posts Accuracy Meaning and Definition Accumulation Meaning and Definition Accumulate Meaning and Definition