support someone
My friends always back me up when I need help.
back up — 4 meanings
Same words, different jobs. Compare the meanings side by side so you know which one fits the situation.
phrasal verb4 meanings
back upsame phrase
Which one do you mean?
reverse a vehicle
Could you back up a little so I can get out?
make a copy
Remember to back up your files before updating your computer.
retreat strategically
Realising the discussion was becoming heated, she decided to back up and reconsider her approach.
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Meanings in detail
1. support someone
B1neutralspoken
To give help or show that you agree with someone, especially in an argument or difficult situation.
My friends always back me up when I need help.
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B1neutralspoken
To move a car or other vehicle backwards.
Could you back up a little so I can get out?
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B2neutralboth
To make an extra copy of computer files or data in case the original is lost or damaged.
Remember to back up your files before updating your computer.
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C2neutralspoken
To withdraw, concede ground, or step back from a position, argument, or situation in a controlled or deliberate way, often to reassess or avoid escalation.
Realising the discussion was becoming heated, she decided to back up and reconsider her approach.
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