TUN'NEL, noun A vessel with a broad mouth at one end, and a pipe or tube at the other, for conveying liquor into casks.

1. The opening of a chimney for the passage of smoke; called generally a funnel.

2. A large subterraneous arch through a hill for a canal and the passage of boats. Smaller drains or culverts are also called tunnels.

TUN'NEL, verb transitive To form like a tunnel; as, to tunnel fibrous plants into nests.

1. To catch in a net called a tunnel-net.

2. To form with net-work.