bounce

2. To move up and down quickly and repeatedly.

The kids bounce on the bed when they are excited.

3. To jump suddenly or energetically.

She bounced out of her chair to answer the door.

4. An email that cannot be delivered and is returned to the sender.

I got a bounce message because I typed the address wrong.

5. The quality of being lively and full of energy.

He walked with a happy bounce in his step.