The term "Ground Stroke" is associated with the game of Tennis.

Explanation:
Tennis is a popular racket sport that is played between two players (singles) or between two teams of two players each (doubles). The objective of the game is to hit the ball over the net and into the opponent's court in a way that the opponent is unable to return it.

A groundstroke is a type of shot that is played after the ball has bounced once on the court. It is one of the basic strokes in tennis and is often used during rallies.

Here is a detailed explanation of ground strokes in tennis:

1. Definition:
- A groundstroke is a shot that is hit after the ball has bounced once on the court.
- It is usually played from the baseline, which is the area of the court farthest from the net.

2. Types of Ground Strokes:
- Forehand Groundstroke: This is a shot played with the dominant hand on the racket's grip. The player swings the racket across their body, making contact with the ball on the front side of their body.
- Backhand Groundstroke: This shot is played with the non-dominant hand on the racket's grip. The player swings the racket across their body, making contact with the ball on the back side of their body.

3. Technique:
- The player needs to have a balanced stance and be prepared to move their feet quickly to reach the ball.
- The swing of the racket should be smooth and controlled, with proper follow-through.
- The player should try to generate power and spin by using their body's rotation and transferring weight from back foot to front foot during the shot.

4. Purpose:
- Ground strokes are used to control the ball and keep it in play during rallies.
- They are often hit with topspin, which causes the ball to dip down quickly after crossing the net.
- Ground strokes can be played aggressively to hit winners or defensively to retrieve difficult shots.

In conclusion, the term "Ground Stroke" is associated with the game of Tennis. It refers to a shot played after the ball has bounced once on the court and is one of the fundamental strokes used in the game.