countdown
US /ˈkaʊnt.daʊn/
UK /ˈkaʊnt.daʊn/
1.
the act of counting backward to zero, typically to mark the start of an event
:
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The final countdown to the rocket launch began.
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We watched the New Year's Eve countdown on TV.
1.
to count backward to zero
:
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The mission control began to countdown from ten.
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We need to countdown the days until our vacation.