To move backwards, especially for a vehicle to do so.
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.
To copy (data) so that it can be restored if the main copy is lost.
To undo one's actions.
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.
To fill up because of a backlog.
To halt the flow or movement of something.
To provide support or the promise of support to.
To reconsider one's thoughts.
To move a vehicle backwards.
Coordinate terms: back away, back off, stand back
To turn or fold inwardly.
To fold inward to create a hollow space where none had existed, as with a gastrula forming from a blastula.
To fold up or enclose into a sheath-like or pouch-like structure, either naturally or as part of a surgical procedure.
Having one portion of a hollow organ drawn back within another portion.
sheathed