cave:She lived in a cave with the rest of her family.
a large hole in the side of a hill, cliff, or mountain, or one that is underground.
coast: The coast is formed by imposing cliffs and beautiful beaches.
the land next to or close to the sea.
egg: The egg is the reproductive cell of a chicken.
the oval object with a hard shell that is produced by female birds, especially chickens, eaten as food.