Correct spelling for the English word "deuceace" is [djˈuːsiːs], [djˈuːsiːs], [d_j_ˈuː_s_iː_s] (IPA phonetic alphabet).
Deuceace is a term that is primarily used in the game of tennis. It refers to a situation where both players have a score of 40 points or deuce, resulting in a tie. More specifically, "deuce" signifies a score of 40-40, and "ace" represents a point that is won directly by the server without being touched by the opponent.
In tennis, the scoring system has a unique way of counting points. A player starts at zero and then advances to 15 points, followed by 30 points. The next point will put the player at 40 points, which is known as "forty." When both players reach a score of 40 points, it is called a "deuce." To win the game, a player must gain an advantage of two points over their opponent after reaching deuce.
When one player scores an "ace" while the game is at deuce, it means that they serve the ball in such a way that the opponent fails to make contact with it before it lands within the legal boundaries of the court. Consequently, the server is awarded the point directly, bypassing the need for further play or an opportunity for the opponent to respond. Thus, when a deuce is broken by an ace, it is referred to as a "deuceace."
Overall, the term "deuceace" denotes the occurrence of a successful ace shot that breaks the deuce and awards the server a point directly.