1. large-scale sculptures or installations made by moving and arranging earth, rocks, or other natural materials
Usage: art
2. defensive walls, trenches, or other fortifications made of earth
Usage: military; historical
3. the process of moving large quantities of soil, rock, or other materials during construction
Usage: construction

Examples

• The artist created massive earthworks in the desert using bulldozers and natural materials.
• Ancient earthworks can still be seen at the old battlefield site.
• The construction crew began earthworks to prepare the foundation for the new building.
• Spiral Jetty is one of the most famous earthworks in American art.
• The fort’s earthworks provided protection from enemy artillery.
• Heavy machinery was brought in for the earthworks phase of the highway project.
• Archaeological surveys revealed prehistoric earthworks beneath the field.