Article in English: ‘All’ essentially means ‘both’ in tennis lingo. If you and your opponent have both won one point, thus making it 15-15, you would actually call out “15-all”. The same goes for sets. If you both have won three games, you would call out “3-all” before starting your serve. And no, we are not talking about the romantic, or even the platonic, kind of love. In tennis, the word ‘love’ refers to a score of zero.  For example:  If you are serving and have not won any points, but your opponent has won two, you would call out “love-30”. Same goes for games. If you have won three games, but your opponent has won none, you would call out “3-love”. If you are just beginning a game and neither of you have won any points, you would call out “love-all”. (Which is a pretty nice sentiment to begin a game with). In tennis, when two players have a tied score of 40 to 40 during a game, it is called a ‘deuce’. There are two ways to play out a deuce--either the person to get the next point wins, or you play ‘advantage’ (‘ad’ for short). This means that a player must win the deuce point, and the following point. When the player serving wins the deuce point, the score is ‘ad-in’ (advantage-in, meaning the server has the advantage). When the receiver wins the deuce point, the score is ‘ad-out’. If one player wins the deuce point, but doesn’t win the ad, then the score goes back to deuce. For example, if you were serving and you both won four points (making it 40-40 a.k.a. deuce) then you would serve again. Let’s say you won the deuce point making it ‘ad-in’. If you win the next point, you win the game. If you lose the next point, the score goes back to deuce and your opponent has the chance to beat you and get ‘ad-out’. If your opponent loses the ‘ad-out’, it goes back to deuce...etc.

Summary in Indonesian:
Ketahui apa arti ‘all’ di tenis. Pahami apa arti ‘love’. Pahami arti dari ‘deuce’ dan ‘advantage’. Pahami arti ‘ad-in’ dan ‘ad-out’.