backs, backed, backing

to back up
phrasal verb

To move in reverse, especially a vehicle
  • 1Please back up the car a little.
  • 2She had to back up to let the truck pass.
This means to make something, like a car, go backwards instead of forwards. For example, when you want to leave a parking space, you move the car in the opposite direction from where it was going before.
Card
When you hear someone say "Can you back up a little?" in a crowded place, they are asking you to move backwards to give more space.
in a crowded parking lot
Navigating the Lot
George
Jessica, can you help me here? I need to back up the car.
Jessica
Sure, George. Just go slowly and I'll guide you.
George
Thanks, I can't see much with all these cars around.
Jessica
No worries, you're doing fine. Keep going straight.
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Similar to "to back up":
  • 1reverse
  • 2retreat