1. The left side of the court for serving

1. The server's scoring opportunity after deuce

2. The score tied at 40-40

3. A serve that hits the net but lands in the correct service box

4. The extra area to the side of the singles court

5. A shot hit diagonally across the court

6. A serve with improper foot positioning

7. The boundary at the end of the court

8. A shot hit on the dominant side of the body

9. A score of zero

10. A tennis match with 4 players

11. A shot hit before the ball bounces

12. The barrier in the middle of the court

13. A high shot that goes over the opponent's head

14. A deciding game played at 6-6 in a set

15. A soft shot that just clears the net

16. The act of hitting the ball to start a point

17. A shot hit on the non-dominant side of the body

18. A serve that is not touched by the opponent

19. A tennis competition between players or teams