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- Dictionarytunnel/ˈtʌnl/
noun
- 1. an artificial underground passage, especially one built through a hill or under a building, road, or river: "a road tunnel through the Pyrenees"
- 2. short for wind tunnel
verb
- 1. dig or force a passage underground or through something: "he tunnelled under the fence"
- 2. (of a particle) pass through a potential barrier.
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TUNNEL definition: 1. a long passage under or through the ground, especially one made by people: 2. the long passage…. Learn more.
1. : to make or use a tunnel. 2. physics : to pass through a potential barrier. electrons tunneling through an insulator between semiconductors. transitive verb. : to make a tunnel or similar opening through or under. also : to make (one's way) by or as if by making a tunnel.
A tunnel is relatively long and narrow; the length is often much greater than twice the diameter, although similar shorter excavations can be constructed, such as cross passages between tunnels. A tunnel made by an animal is commonly referred to as a burrow and may or may not have multiple portals.
noun. an underground passage. a passageway, as for trains or automobiles, through or under an obstruction, as a city, mountain, river, harbor, or the like. an approximately horizontal gallery or corridor in a mine. the burrow of an animal. Dialect. a funnel.
A tunnel is a passage that runs underground or through something, like a train tunnel that cuts through a mountain. Some theme parks have networks of underground tunnels so that employees can move around out of sight of visitors.
tunnel. noun. /ˈtʌnl/. /ˈtʌnl/. Idioms. a passage built underground, for example to allow a road or railway to go through a hill, under a river, etc. a railway/railroad tunnel. the Channel Tunnel. the tunnel entrance/walls/ceiling.
n. 1. (Civil Engineering) an underground passageway, esp one for trains or cars that passes under a mountain, river, or a congested urban area. 2. any passage or channel through or under something. 3. a dialect word for funnel. 4. (Building) obsolete the flue of a chimney.
TUNNEL definition: 1. a long passage under the ground or through a mountain: 2. to dig a tunnel. Learn more.
noun. 1. an underground passageway, esp one for trains or cars that passes under a mountain, river, or a congested urban area. 2. any passage or channel through or under something. 3. a dialect word for funnel. 4. obsolete. the flue of a chimney.
tunnel meaning, definition, what is tunnel: a passage that has been dug under the gr...: Learn more.