1. a mound of earth, sand, or other material built by ants around the entrance to their nest

Examples

• The children watched ants streaming in and out of the large anthill.
• After the rain, the anthill was partially washed away.
• She accidentally stepped on an anthill while hiking.
• The anthill in our backyard grew bigger each week.
• Dozens of ants were busy rebuilding their damaged anthill.
• The park ranger explained how ants construct an anthill.