Define the term "screen" in basketball.

The term "screen" in basketball refers to an action where a player uses their body to block a defender, which effectively creates space for a teammate to make a play, often allowing them to either take a shot or receive a pass. This action is fundamental in basketball as it helps to enhance offensive opportunities and disrupt the defensive alignment.

By implementing a screen, the offensive player positions themselves in such a way that when the defender attempts to follow their opponent, they encounter the stationary screener. This not only helps the teammate avoid being closely guarded but also can create favorable matchups and open shots. The effectiveness of a screen depends on how well it is set and the timing with which it is executed.

Understanding the mechanics and purpose of a screen is crucial for players to optimize offensive plays and is a common practice in various basketball strategies. It enables teams to work cohesively to create scoring opportunities against defenders.