In tennis, a Chip is a shot hit with an underspin to keep the ball low.
The backspin makes the ball float just above the court surface after bouncing. Players use a chip to change the pace or defend against powerful shots.
The continental grip makes it easier to hit the underpin for a good chip. When done well, a chip can neutralize an opponent's attack and set up offense.
How to Hit the Chip and Charge, Bunt, and SABR Return of Serve – [Chip][1]
[1]: https://www.youtube.com/watch?v=4dPaXTsaZcM