Deutsch: Tennis
Tennis is a sport that people usually play individually against a single opponent (singles) or between two teams of two players each (doubles). Each player uses a racquet that is strung with cord to strike a hollow rubber ball covered with felt over or around a net and into the opponent's court. The object of the game is to play the ball in such a way that the opponent is not able to play a good return.

Tennis is not typically used in an industrial or industry context, as it is a sport and recreational activity. In general, the term "tennis" refers to a game played between two or more players using rackets to hit a ball back and forth over a net. Tennis is enjoyed by people all over the world as a form of exercise and competitive sport. There may be some limited applications of tennis in the sports equipment or recreation industries, but it is not commonly used as a term in an industrial or industry context.