tennis
The word 'Tennis' is the same in both English and Italian and it refers to a sport where two or four people hit a ball back and forth over a net. In Italian, it is used exactly as it is in English, but with an Italian pronunciation.
I like to play tennis.
This sentence is a simple statement used to express enjoying the activity of playing tennis.
Tennis is a centuries-old sport.
This sentence provides information about the age of tennis as a sport.
We need a tennis racket.
This sentence is used when you need a certain piece of equipment to play tennis, which in this case is a tennis racket.