stand-by
Ready when needed
Stand-by is something or someone ready to serve as a backup or substitute: a stand-by generator, stand-by crew.
In travel, stand-by refers to waiting for an available seat on a flight without a confirmed reservation: flying stand-by.
To be on stand-by is to be ready to act when needed.
Also spelled standby.
Backup actor, ready nightly
- backupStored duplicate for recovery
- fill-inTemporary substitute person
- stand-inTemporary human placeholder
- replacementWhat takes another's place
alternate · reserve · pinch-hitter · deputy · locum · temp · surrogate · proxy
Warning or watchfulness
- readySuitable for use now
- preparedMade ready beforehand
- on-callAvailable when summoned
- waitingRemaining in expectation
poised · primed · available · mobilized · vigilant · equipped · set · anticipation
Electricity-producing machine
- powerEnergy transfer rate
- backupStored duplicate for recovery
- outageLoss of electrical service
- blackoutComplete power loss
auxiliary · battery · diesel · UPS · failover · redundancy · electricity · grid
Roster of pending hopefuls
- bookingAdvance arrangement secured
- seatPlace for sitting
- flightAerial journey by aircraft
- passengerTraveler, not operator
ticket · boarding · gate · overbooking · confirmation · upgrade · availability · queue
Support or aid given
- backupStored duplicate for recovery
- reinforcementAdding support or encouragement
- helpAssistance given
- aidSupport given freely
resources · service · provision · maintenance · facilitation · sponsorship · endorsement · funding
understudy
Backup actor, ready nightly
- backupStored duplicate for recovery
- fill-inTemporary substitute person
- stand-inTemporary human placeholder
replacement · alternate · reserve · pinch-hitter · deputy · locum · temp · surrogate · proxy · second-string
alert
Warning or watchfulness
waiting · poised · primed · available · mobilized · vigilant · equipped · set · anticipation · contingency
generator
Electricity-producing machine
blackout · auxiliary · battery · diesel · UPS · failover · redundancy · electricity · grid · surge
waitlist
Roster of pending hopefuls
passenger · ticket · boarding · gate · overbooking · confirmation · upgrade · availability · queue · priority
assistance
Support or aid given
- backupStored duplicate for recovery
- reinforcementAdding support or encouragement
- helpAssistance given
aid · resources · service · provision · maintenance · facilitation · sponsorship · endorsement · funding · contribution
pause
Temporary cessation of activity
hiatus · intermission · idle · countdown · suspense · pending · stalling · hovering · biding · anticipation