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English definition of “standby”

standby

noun [C] uk   /ˈstænd.baɪ/ (plural standbys) us  

standby noun [C] (READY)

something that is always ready for use, especially if a regular one fails: Board games are a good standby to keep the children amused if the weather is bad. There are standby generators but these usually only have to work for a few hours a year during power cuts. on standby When a person or a thing is on standby, they are ready to be used if necessary: Hospitals are on standby ready to deal with casualties from the crash.

standby noun [C] (TICKET)

(also standby ticket) a cheap ticket sold just before a flight or a performance if there is a seat available
(Definition of standby from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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