4 results for: countdown

count·down

Audio Help [kount-doun] Pronunciation Key

–noun

1.	the backward counting in fixed time units from the initiation of a project, as a rocket launching, with the moment of firing designated as zero.

2.	the final preparations made during this period.

3.	a period of increasing activity, tension, or anxiety, as before a deadline.

[Origin: 1950–55, Americanism; n. use of v. phrase count down

]

Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.

count·down Audio Help (kount'doun') Pronunciation Key
n.

The counting backward aloud from an arbitrary starting number to indicate the time remaining before an event or operation, such as the launching of a missile or space vehicle.
The checks and preparations carried out during this activity.

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