bn:00023150n
Noun Concept
Categories: Spaceflight concepts, Time, Articles with short description
EN
countdown
EN
Counting backward from an arbitrary number to indicate the time remaining before some event (such as launching a space vehicle) WordNet 3.0
Definitions
Relations
Sources
EN
Counting backward from an arbitrary number to indicate the time remaining before some event (such as launching a space vehicle) WordNet 3.0 & WordNet 2020
A countdown is a sequence of backward counting to indicate the time remaining before an event is scheduled to occur. Wikipedia
decreasing count indicating the time (typically in seconds) remaining before an event is scheduled to occur Wikidata
A count backward indicating the time left before some event occurs. OmegaWiki
A count backward in fixed units to the time of some event, especially the launch of a space vehicle. Wiktionary
A count backward to the time of some event. Wiktionary (translation)
WordNet 3.0 & WordNet 2020
Wikipedia
Wikidata
Wiktionary
OmegaWiki
Wikidata Alias
EN