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Dictionary entry overview: What does zero hour mean?
• ZERO HOUR (noun)
The noun ZERO HOUR has 1 sense:
1. the time set for the start of an action or operation
Familiarity information: ZERO HOUR used as a noun is very rare.
Dictionary entry details
|Sense 1||zero hour [BACK TO TOP]|
The time set for the start of an action or operation
Nouns denoting time and temporal relations
Hypernyms ("zero hour" is a kind of...):
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