Doppelschlag

Etymology
.

Noun

 * 1) a kind of firecracker
 * 2) a phenomenon of a die printing a transposed picture on a coin
 * 3) turn, two by-tones  by a main tone
 * 4)  double stroke, when one hits once and it bounces back for a second sound
 * 5)  brace, two goals by one side in one game
 * 6)  when one touches the ball twice with the racquet
 * 1)  brace, two goals by one side in one game
 * 2)  when one touches the ball twice with the racquet
 * 1)  when one touches the ball twice with the racquet