Definition, Meaning & Synonyms

zero-hour

noun
ˈziːroʊ ˈaʊər
Definition
The term ‘zero-hour’ refers to a specific moment when an event is set to start or when certain actions or conditions come into effect.
Examples
  • Military Context: The operation began at zero-hour, marking the start of the mission.
  • Project Management: We need to be ready by zero-hour to ensure the project’s success.
  • Emergency Response: At zero-hour, the team activated the emergency protocols.
Meaning
In a broader context, it can signify a crucial or decisive moment that determines the outcome of a situation.
Synonyms
  • start time
  • moment of truth
  • kickoff