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back up

Phrasal verb · B1

back up

Meaning

To support someone; to make a copy of data.

Example

The evidence backs up her argument.

When to use it

Essays: "back up your claims with examples".

Intermediate (B1): useful for everyday conversation.

Try "back up" in a sentence

Write two or three sentences with it. Nib checks the grammar and tells you if it sounds natural.

More phrasal verbs

break downTo stop working (machines)
bring upTo mention a topic
bump intoTo meet someone by chance
call offTo cancel something planned
carry onTo continue doing something
catch upTo reach the same level or position as others after falling behind
check outTo leave a hotel
come alongTo accompany someone

See all 244 phrases →

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