Meaning: Ridges of water that move across the surface of a large body of salt water hit with great force the land along the edge of a body of water covered with sand.
Choice of Words: Ocean is a large body of salt water, "waves" are ridges of water that move across the surface of a body of water, "crashed" means hit with force, "powerfully" means with great force, "sandy" means covered with sand, and "shore" is the land along the edge of a body of water.