tennis
/ˈtɛn.ɪs/noun
A game in which two players, or two pairs, hit a ball back and forth over a net with racquets.
Like most game names, it takes no article: 'play tennis', not 'play the tennis'.
Related words
swimmingThe activity or skill of moving through water using the body.basketballA game between two teams of five, where each side tries to throw a ball into the other's hoop.runningThe activity of moving fast on foot, done as exercise, as a sport, or for another purpose.footballA team game played on foot in which players try to move a ball into a goal or zone that the other team defends.cyclingThe sport or activity of riding a bicycle or similar cycle, whether for travel, fitness, or fun.coachA person who trains and guides athletes, performers, or students.