What "fastball" means in baseball

A fastball in baseball is a pitch thrown at high velocity with minimal spin, resulting in a straight trajectory from the pitcher to the catcher. It is often considered the most important pitch in a pitcher's arsenal as it can reach speeds upwards of 100 mph and can be used to surprise and intimidate batters. Proper technique and timing are crucial for pitchers to effectively throw a fastball, as any slight flaws can result in a slower speed or inaccurate pitch.