- (n..) The opening of a chimney for the passage of smoke; a flue; a funnel.
- (n..) A level passage driven across the measures or at right angles to veins which it is desired to reach; -- distinguished from the drift or gangway, which is led along the vein when reached by the tunnel.
- (v.t.) To catch in a tunnel net.
- (n..) A vessel with a broad mouth at one end, a pipe or tube at the other, for conveying liquor, fluids, etc., into casks, bottles or other vessels; a funnel.
- (v.t.) To make an opening or a passageway, through or under; as, to tunnel a mountain; to tunnel a river.
- (n..) An artificial passage or archway for conducting canals or railroads under elevated ground, for the formation of roads under rivers or canals, and the construction of sewers, drains, and the like.
- (v.t.) To form into a tunnel or funnel or to form like a tunnel; as, to tunnel fibrous plants into nests.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). tunnel. Retrieved September 22, 2026, from http://smartdefine.org/tunnel/definitions/2075489 |
| Chicago | Webster's. 2011. "tunnel" http://smartdefine.org/tunnel/definitions/2075489 (accessed September 22, 2026). |
| Harvard | Webster's 2011, tunnel, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/tunnel/definitions/2075489>. |
| MLA | Webster's. "tunnel" 28 May 2011. Web. 22 September 2026. <http://smartdefine.org/tunnel/definitions/2075489> |