bounce

To bounce is to change the direction of motion after hitting an object.

Example: The tennis ball bounced off the wall.

To bounce is to make something move quickly up and down, or down and up.

Example: He bounced the child on his knee.

To bounce a check, is to be refused by a bank.

A bounce is a change of direction of motion, often after hitting an object.

Example: The poor bird made a big bounce off my car when we hit each other.

A bounce can also mean movement that is up and down, up and down (repeated).