The term "120Hz" refers to a display refresh rate, indicating that a screen can refresh its image 120 times per second. This higher refresh rate results in smoother motion and improved clarity, especially during fast-paced activities like gaming or watching sports. Many modern devices, such as televisions and computer monitors, support 120Hz, enhancing the viewing experience. For gamers, a 120Hz display can provide a competitive edge, as it allows for quicker response times and reduced motion blur, making it easier to track fast-moving objects on the screen.