zero hour
When it begins
Zero hour is the scheduled time for a military operation to begin, the moment when plans turn into action.
More broadly, it marks any critical or decisive moment: As zero hour approached, the team made final preparations.
The phrase suggests tension and finality—the point of no return when something significant is about to happen.
Point of termination
- ultimatumNon-negotiable final terms
- expirationEnd of validity
- time limitMaximum duration permitted
- last chanceUltimate remaining opportunity
eleventh hour · crunch time · do-or-die · trigger point · countdown · timeframe
Backward enumeration to zero
- liftoffMoment of ascent
- ignitionStarting combustion process
- T-minusRocket launch countdown
- mission controlEarth-based space operations hub
rocket · spacecraft · launch pad · blastoff · propulsion · thrust · sequence · abort
Serious sudden danger
- critical momentDecisive point in events
- turning pointDecisive moment of change
- decisive momentPivotal juncture determining outcome
- tipping pointThreshold triggering major change
breaking point · moment of truth · flashpoint · crux · climax · pivotal moment · make-or-break · high-stakes
Violent offensive act
- offensiveCausing displeasure or attack-oriented
- deploymentOrganized distribution of resources
- D-Day1944 Normandy invasion
- combatArmed hostile engagement
operation · mission · troops · invasion · attack · briefing · synchronization · coordination
State of awaiting something
- anxietyPersistent apprehensive distress
- nervesTense apprehension
- dreadIntense anticipatory fear
- apprehensionNervous anticipation of trouble
suspense · pressure · uncertainty · jitters · unease · adrenaline · waiting · bracing
cutoff
Point of termination
- ultimatumNon-negotiable final terms
- expirationEnd of validity
- time limitMaximum duration permitted
last chance · eleventh hour · crunch time · do-or-die · trigger point · countdown · timeframe
countdown
Backward enumeration to zero
mission control · rocket · spacecraft · launch pad · blastoff · propulsion · thrust · sequence · abort · hold
emergency
Serious sudden danger
- critical momentDecisive point in events
- turning pointDecisive moment of change
- decisive momentPivotal juncture determining outcome
tipping point · breaking point · moment of truth · flashpoint · crux · climax · pivotal moment · make-or-break · high-stakes · urgency
assault
Violent offensive act
- offensiveCausing displeasure or attack-oriented
- deploymentOrganized distribution of resources
- D-Day1944 Normandy invasion
combat · operation · mission · troops · invasion · attack · briefing · synchronization · coordination · barrage
anticipation
State of awaiting something
apprehension · suspense · pressure · uncertainty · jitters · unease · adrenaline · waiting · bracing · breath-holding
- High Stakesdo-or-die, do or die, make-or-break, make or break, life or death
- suspensesuspense, suspenseful, tension, nail-biter, nail-biting
- time pressurerush, against the clock, rushed, clock is ticking, urgency
- urgencyurgent, urgently, emergency, ASAP, stat
- crunch timecrunch time, do or die, do-or-die, last chance, now or never
- turning pointsturning point, defining moment, pivotal event, pivotal moment, crossroads
zero houraftermath
Results following an event
conclusion · finale · endgame · denouement · final hour
zero hourdowntime
Period of non-operation
peacetime · lull · routine · business as usual · quiet time
zero hourceasefire
Agreed halt to fighting
armistice · stand down · mission accomplished · all clear · demobilization