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backup
[bak-uhp]
noun
a person or thing that supports or reinforces another.
a musician or singer or group of musicians or singers accompanying a soloist.
a singer with a three-man backup that plays cello, bass, and guitar.
an overflow or accumulation due to stoppage, malfunctioning, etc..
a sewage backup; a backup of cars at the tollbooth.
a person, plan, device, etc., kept in reserve to serve as a substitute, if needed.
Computers.
a copy or duplicate version, especially of a file, program, or entire computer system, retained for use in the event that the original is in some way rendered unusable.
a procedure to follow in such an event.
Bowling.a ball that curves in a direction corresponding to the bowling hand of the bowler.
adjective
(of a person, plan, device, etc.) held in reserve as a substitute if needed.
a backup driver; a backup generator.
performing a secondary or supporting function.
A drummer and guitarist are the singer's backup musicians.
Usage
51Թ History and Origins
Origin of backup1
Example Sentences
It is possible they will provide backup during future immigration raids and prove protection of some federal facilities, including a detention center in downtown L.A. has was the scene of protests and some vandalism;
In further footage played to the jury, police are seen repeatedly shouting at him to drop his sword as they called for backup.
The fans select the starters, and the players in the AL and NL select the backups in their respective leagues.
The students on the van were transferred to a backup van and safely arrived at school on time, and their parents were contacted shortly after the police investigation concluded, the superintendent said.
A backup system failed at the airport May 11 for 45 minutes, causing delays and cancellations for hundreds of flights.
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Related 51Թs
When To Use
A backup is a person or thing that supports another, as in My role as the backup for the sales team is to take calls when the rest of the team is busy.Backup is a noun form of the verb phrase back up, which means to support or assist.A backup is also a person or thing kept in reserve as a substitute, as in The backup for the cake I’m making is the apple pie in the freezer.A backup is also an overflow or accumulation caused by a blockage or stoppage, such as a car backup on the highway when there’s an accident further ahead on the road.Backup also describes a person or thing that acts as a backup, as with backup dancers, a backup generator, a backup food supply, and a backup plan.Example: Bring in some backup workers to help assist the customers lined up outside the door.
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