Definition of standby
(Entry 1 of 4)
1a : one to be relied on especially in emergencies
b : a favorite or reliable choice or resource
2 : one that is held in reserve ready for use : substitute
on standby
: ready or available for immediate action or use
standby
adjectiveDefinition of standby (Entry 2 of 4)
1 : held near at hand and ready for use
a standby power plant standby equipment
2 : relating to the act or condition of standing by
standby duty a standby period
3 : of, relating to, or traveling by an airline service in which the passenger must wait for an available unreserved seat
standby passengers a standby ticket
standby
adverbDefinition of standby (Entry 3 of 4)
: on a standby basis
fly standby
stand by
verbstood by; standing by; stands by
Definition of stand by (Entry 4 of 4)
1 : to be present also : to remain apart or aloof
2 : to be or to get ready to act
an ambulance was standing by
: to remain loyal or faithful to : defend stood by his decision
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Time Traveler for standby
The first known use of standby was in the 13th century
See more words from the same century