tunnel

An underground or underwater passage.

A passage through or under a barrier such as a mountain.

A tube-shaped structure.

To make a tunnel through or under.

To produce, shape, or dig in the form of a tunnel.

To make a tunnel.

To form, cut, ordig a tunnel through or under.

To form like a tunnel; hollow out in length.

To catch in a tunnel-net.

To form, cut. or drive a tunnel.