Countdown definition

Countdown

Topics Countdown Definition

WordNet

(1) Counting backward from an arbitrary number to indicate the time remaining before some event (such as launching a space vehicle)

WiktionaryText

A count backward in fixed units to the time of some event, especially the launch of a space vehicle
The acts of preparation carried out during this period
A radio or television program counting down the top songs of a given week, usually in reverse order ending with the No. 1.