IPA: /ˈstændˌbaɪ/
KK: /ˈstændˌbaɪ/
Kept ready for use when needed, often in situations where something else may fail or be unavailable.
The hotel has a standby generator in case of power outages.
In a state of readiness to act or respond when needed, often used in contexts like travel or emergency situations.
I flew standby to New York, hoping to get a seat on the next flight.
A person or thing that is kept ready to be used if needed, especially in emergencies or as a substitute.
The team had a backup player on standby in case of injuries during the game.
Standby is formed from "stand" (from Old English "standan", meaning to remain in a specified position) and "by" (from Old English "bi", meaning near or beside). The word "standby" refers to being in a state of readiness or remaining nearby for immediate action.
Think of someone who is 'remaining in position' ('stand') and 'nearby' ('by') — that's why standby means being ready to act.