Pump up
Pronunciation: /ˈpəmp ˈəp/
Pump up (verb)
- To add air into something with a pump, so it becomes full and firm.
- To make a person or thing stronger, bigger, or more powerful.
- To make someone feel more excited or confident.
Examples
- I pump up the tire until it feels firm.
- She pumps up the ball before the game starts.