remove by or as if by rubbing or erasing;
"Please erase the formula on the blackboard--it is wrong!"
- The mud will rub off quite easily.
- Rub out chalk marks with an eraser.
- How could I trace your hair to wipe your tears?My hands reached out, catching nothing but a raindrop, on a leaf that had withered.
- She took out a contract on her ex-husband.
- The police ruled out the possibility that the boy was murdered by his uncle.
- rub out 擦掉