- phrasal verb to make a car go backwards
- noun a copy of a file or set of data kept for security against errors in the original or master copy
(written as back-up)To copy computer files onto an additional storage medium. For instance, copying the contents of a folder contained on a hard drive to a tape drive or floppy disks. This is important, for instance, in avoiding the loss of data when there are software or hardware malfunctions, or in case of user carelessness. There are utilities which can simplify this process, for instance, by following a schedule, or by compressing the data to economize storage space and time.
Information & Library Science
- verb to make a copy of computer data to keep in case anything goes wrong with the original
(written as back-up)the accompaniment to the main performer of a piece of popular music or jazz
- verb to print on the second side of a sheet of paper
(written as back-up)(someone who is) prepared to use force on behalf of or otherwise show solidarity with (a friend). The term, deriving from the colloquial verb phrase ‘back (someone) up’, was first part of the vocabulary of gangs, and since around 2000 extended to other speakers.
- verb to become jammed, because of not being able to go forwards