If something is hollow, it is empty on the inside. A chocolate Easter bunny looks like so much chocolate until you realize that it is hollow and quickly eaten. The idea of emptiness is apparent in the other uses for hollow too.

What is something hollow?

If something is hollow, it is empty on the inside. A chocolate Easter bunny looks like so much chocolate until you realize that it is hollow and quickly eaten. The idea of emptiness is apparent in the other uses for hollow too.

What is a hollow in nature?

Natural phenomena Hollow, a low, wooded area, such as a copse. Hollow (landform), a small vee-shaped, riverine type of valley. Tree hollow, a void in a branch or trunk, which may provide habitat for animals.