Badminton

3. badminton's primary attacking stroke
6. stroke used to put the shuttlecock into play at the start of a rally
7. back boundary line at each end of the court, parallel to the net
8. area into which the serve must be delivered
11. official name for the object that the players must hit
13. extension of the court by 1.5 feet on both sides for doubles play
14. a violation of the playing rules, either in serving, receiving or during play
15. a shot hit softly and with finesse to fall rapidly and close to the net on the opposition's side
17. in singles, the back boundary line. in doubles a line 2.5 feet inside the back boundary line. the serve may not go past this line.
18. the middle third of the court, halfway between the net and back boundary line
21. area of play as defined by the outer boundary lines

1. front third of the court, between the net and the short serve line
2. a fast and low shot that makes a horizontal flight over the net
4. the line 6.5 feet from the net which a serve must reach to be legal
5. location in the center of the court to which the singles player tries to return after each shot
9. area between the back boundary line and the back service line for doubles
10. a series of games to determine a winner
12. exchange of shots while the shuttle is in play
16. instrument used by the player to hit the shuttlecock/birdie
19. line perpendicular to the net that separates the left and right service courts
20. back third of the court in the area of the back boundary lines