Jisho

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Noun
1. countdown
Wikipedia definition
2. CountdownA countdown is a sequence of counting backward to indicate the seconds, days, or other time units remaining before an event occurs or a deadline expires. Some events for which a countdown is used include the launch of a rocket or spacecraft, the detonation of a bomb, the start of a race, or the start of the New Year. In an early attestation of a countdown, it started a rowing race at Cambridge University.
Read “Countdown” on English Wikipedia
Read “カウントダウン” on Japanese Wikipedia
Read “Countdown” on DBpedia

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