To excavate means to carefully dig out and remove earth, rock, or other materials from the ground, usually to uncover something buried or to create a space. Archaeologists excavate ancient ruins to find artifacts and learn about past civilizations. Construction workers excavate deep holes for building foundations or underground parking garages.

The word comes from Latin roots meaning “to hollow out,” which captures exactly what happens: you're creating a hollow space by removing what was there. When archaeologists excavate a site, they work slowly and methodically, using small tools like brushes and trowels to remove dirt layer by layer without damaging what's underneath. They might spend months excavating a single room of an ancient building, documenting everything they find.

Excavation is the noun form. A construction excavation might involve huge machines moving tons of earth, while an archaeological excavation requires patience and precision. The basement of your house probably started as an excavation: workers dug out the space before pouring concrete for the foundation.