Meaning: This sentence describes how the ripples on the lake's surface move and expand, creating a beautiful pattern.
Choice of Words: "Ripples" are small waves on the surface of water. "Spread" means to move or distribute something over an area. "Lake" is a large body of water surrounded by land. When you put them together, "Ripples spread across the lake" describes how the ripples move and expand on the surface of the lake.