back sth up Meaning in the Cambridge English Dictionary
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Meaning of “back sth up” in the English Dictionary

"back sth up" in British English

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back sth up

phrasal verb with back uk   us   /bæk/ verb
C2 to ​prove something is ​true: His ​claims are ​backed up by ​recentresearch.B2 to make an ​extracopy of ​computerinformation: Make ​sure you back up ​yourfiles.
See also

back (sth) up

phrasal verb with back uk   us   /bæk/ verb
to ​drivebackwards
(Definition of back sth up from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"back sth up" in Business English

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back sth up

phrasal verb with back uk   us   /bæk/ verb [T]
IT to make an ​extracopy of a ​computerfile, etc.: Don't forget to back up your ​files at least once a week. Research ​data and ​accountinformation were ​backed up ​daily.
(Definition of back sth up from the Cambridge Business English Dictionary © Cambridge University Press)
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