the right is the deuce side and the left is called the ad side
If a player is standing on the baseline and looking at the net, the left side of the court is called the ad side.
The ad side of a tennis court is the players left side. Or the opponents right side.
if you are serving, it is the "left" side of the court
deuce side..the left side is the ad side
I will interpret this question as asking which SIDE of the tennis court do you serve into first in tennis. The two halves of the tennis court are called "ad" (short for advantage) and "deuce." Your ad court is diagonal to your opponent's ad court and your deuce court is diagonal to your opponent's deuce court. You begin serving on your ad side diagonally into your opponent's ad side. If you are facing the net from the baseline, the ad side is the right and the deuce side is the left. In simpler terms, you start on the right side and serve diagonally into the left side of your opponent's court. This is a link to a tennis court diagram. Perhaps a visual will help better understand the answer to your question. It can be found on the related links.
If you are standing on the baseline and looking at the net, the right-hand side of the tennis court is called the deuce side.
When the ball is out side the court lines
When serving or returning, there is a deuce side and an ad side. The deuce side is on the right, the ad side is on the left.
The right hand side is the deuce side and left is the ad side.
You begin play by serving from the Right Side of the Court (known as the duece court) serving to the left.
Right side facing the net. This is called the deuce side. The left side is called the ad side.