what is a double fault in tennis

In tennis, a double fault occurs when the serving player commits any combination of two faults during one serving point. A fault is a mistake made by the serving player during their serve, such as serving the ball into the net or serving the ball over the net but not into the diagonal service box. After each successful serve, the faults get reset, and the server gets another two tries to complete a successful serve. If the serving player makes two mistakes in the same point, it is called a double fault, and they lose the point). Double faults are not very common in the professional tennis world, as players are highly skilled and rarely lose points this way.