backup

backup in WordNet English dictionary

noun

a musical part (vocal or instrumental) that supports or provides background for other musical parts
accompaniment musical accompaniment backup support
the act of providing approval and support
"his vigorous backing of the conservatives got him in trouble with progressives"
backing backup championship patronage
(computer science) a copy of a file or directory on a separate storage device
"he made a backup in case the original was accidentally damaged or erased"
backup computer backup
someone who takes the place of another (as when things get dangerous or difficult)
"the star had a stand-in for dangerous scenes"; "we need extra employees for summer fill-ins"
stand-in substitute relief reliever backup backup man fill-in
an accumulation caused by clogging or a stoppage
"a traffic backup on the main street"; "he discovered a backup in the toilet"
backup

(noun) A reserve or substitute.
(noun) (computing) A copy of a file or record, stored separately from the original, that can be used to recover the original if it is destroyed or damaged.
(noun) An accumulation of material that halts the flow or movement of something.
(adjective) standby, reserve or extra
(adjective) (computing) That is intended as a backup.

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