Ocean waves crashed mightily on the shore.

Meaning: This sentence describes large waves from the ocean hitting the land with great force, making a loud sound.

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 to make a loud noise when hitting something. Mightily means with great force or power. Shore is the land along the edge of a body of water.