There is no "term" for the start of a tennis match. After the players' warm-up has completed, professional tennis matches officially begin when the chair umpire says, "play." Amateur and unofficiated matches usually begin by the server asking the receiver if he/she is "ready".
Chat with our AI personalities
The person who did not serve the last game of the previous set. At the start of matches, the first server is determined by a coin toss
by one person serving the ball over to the other side and play the game to see who wins