Definition of back-up

"back-up" is probably misspelled. Trying backup instead Definition of backup

1. backup [ n ] someone who takes the place of another (as when things get dangerous or difficult)
Examples: "the star had a stand-in for dangerous scenes" "we need extra employees for summer fill-ins"

Synonyms relief fill-in backup backup_man substitute reliever stand-in Related Terms peer surrogate locum_tenens double substitute

2. backup [ n ] the act of providing approval and support
Examples: "his vigorous backing of the conservatives got him in trouble with progressives"

Synonyms patronage backing backup championship Related Terms blessing support back

3. backup [ n ] a subordinate musical part; provides background for more important parts

Synonyms support accompaniment musical_accompaniment backup Related Terms part descant vamp support

4. backup [ n ] an accumulation caused by clogging or a stoppage
Examples: "a traffic backup on the main street" "he discovered a backup in the toilet"

Synonyms backup Related Terms accretion clog

5. backup [ n ] (computer science) a copy of a file or directory on a separate storage device
Examples: "he made a backup in case the original was accidentally damaged or erased"

Synonyms computer_backup backup Related Terms duplicate computer_science

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back_up

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