anthill

The mounded nest that ants build out of dirt or sand is called an anthill. You can call a similar mound built by termites an anthill too.

While an anthill is a kind of nest, it is generally formed when ants dig underground colonies and deposit the extra soil in one spot. In this way, an anthill is more of a doorway to a whole series of tunnels and nests, although the anthill itself will sometimes also contain nests. In some cases, ants shape the anthill into a specific, deliberate shape.

Definitions of anthill
1

n a mound of earth made by ants as they dig their nest

Synonyms:
formicary
Type of:
hammock, hillock, hummock, knoll, mound
a small natural hill

Sign up, it's free!

Whether you're a student, an educator, or a lifelong learner, Vocabulary.com can put you on the path to systematic vocabulary improvement.