1. To move or step back in the direction your back is facing because you are surprised, offended, or just want to avoid something. English = step back, (be) taken aback.
2. To take something out of one place and move it to another place; of soldiers, to leave the place where you are fighting. English = withdraw; retreat.
3. To decide you will no longer take part in some activity, especially a committee. English = withdraw.
4. To take back what was given, especially a remark or a statement, by saying that you wish to change or deny it. English = withdraw, retract, rescind, revoke.