CentralNotice From Wikipedia, the free encyclopedia Jump to navigation Jump to search This page is a glossary of tennis terminology. Contents A B C D E F G H I J K L M N O P Q R S T U V W X Y Z References External links A [ edit ] ace : Serve where the tennis ball lands inside the service box and is not touched by the receiver; thus, a shot that is both a serve and a winner is an ace. Aces are usually powerful and generally land on or near one of the corners at the back of the service box. Initially the term was used to indicate the scoring of a point. [1] [2] action : Synonym of spin ad : Used by the chair umpire to announce the score when a player has the advantage , meaning they won the point immediately after a deuce . See scoring in tennis ad court : Left side of the court of each player, so called because the ad ( advantage ) point immediately follo...