In tennis, "deuce" refers to a situation where both players have won three points and are tied. After deuce, the game enters a point following deuce, which determines who wins the game. The first player to win two consecutive points after deuce wins the game. If a player wins one point after deuce, the score is called "advantage" for that player. If the same player wins the next point, they win the game. However, if the opposing player wins the next point, the score goes back to deuce. This process continues until one player wins two consecutive points to win the game.
