The "Strike Zone" in baseball is the area over home plate where a pitch must pass to be considered a strike. It is defined as the space between the batter's knees and the midpoint of their torso when they are in a normal batting stance. If the ball crosses this area and the batter does not swing, the pitch is called a strike. Umpires are responsible for determining whether a pitch is within the strike zone. Their judgment can vary, leading to different interpretations of the zone during a game. Understanding the strike zone is crucial for both pitchers and batters, as it influences their strategies and performance.