Tidal force, also known as tidal effect, is the gravitational force exerted by one astronomical body on another that causes the rise and fall of sea levels. Some synonyms for tidal force include gravitational pull, lunar attraction, oceanic motion, and tidal acceleration. Gravitational pull is used to describe the force that pulls celestial objects, while lunar attraction refers specifically to the moon's effect on Earth's tides. The term oceanic motion refers to the fluid movement of the ocean in response to the gravitational pull of heavenly bodies, and tidal acceleration is the rate at which tidal force increases with distance. Regardless of the terminology used, tidal force plays a significant role in shaping our world's oceans and coastlines.