back sth up
— phrasal verb with back /bæk/ verbDefinition
C2 to prove something is true: His claims are backed up by recent research.Proving and disproving B2 to make an extra copy of computer information: Make sure you back up your files. → See also backupOperating computers
(Definition of back sth up from the Cambridge Advanced Learner's Dictionary & Thesaurus
© Cambridge University Press)
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- Accurate and exact
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- Unfairness and favouring someone unfairly
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- Unspoilt
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- Wanting everything to be right
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More Results for “back sth up”
SMART Thesaurus
Synonyms and related words:
- actions speak louder than words idiom
- attest verb
- authenticate verb
- back sb up phrasal verb
- bear witness (to sth) idiom
- belie verb
- convince verb
- disprove verb
- do justice to yourself idiom
- documentary adjective
- establish verb (DISCOVER)
- evidence noun
- explode verb (PROVE FALSE)
- satisfy verb (BELIEVING)
- show sb in their true colours idiom
- smoking gun noun
- stand up phrasal verb
- substantiate verb
- supportable adjective (TRUE)
- witness verb (SHOW)
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Proving and disproving
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