back up

En français : reculer, faire marche arrière, sauvegarder, faire une sauvegarde

1. To move backwards, especially for a vehicle to do so. (intransitive) · That beeping sound indicates that the truck is backing up.
2. To move a vehicle backwards. (transitive) · Back up the car a little, you're blocking the driveway.
3. To undo one's actions. (intransitive) · I couldn't see how to finish the project, so I backed up and tried it another way.
4. To reconsider one's thoughts. (intransitive) · This isn't working. Let's back up and think about it.
5. To copy (data) so that it can be restored if the main copy is lost. (transitive) · Back up your documents folder before applying the update.
6. To provide support or the promise of support to. (transitive) · You should be careful. This guy is backed up by the local gang.· When he said I wasn't there, I told him I was, and my buddy backed me up.
7. For the non-striker to take a few steps down the pitch, in preparation to taking a run, just as the bowler bowls the ball. (intransitive)
8. For a fielder to position himself behind the wicket (relative to a team-mate who is throwing the ball at the wicket) so as to stop the ball, and prevent overthrows. (intransitive)