Definition, Meaning & Synonyms
tunnel
noun
/ˈtʌn.əl/
Definition
A tunnel is an underground passageway that allows people or vehicles to travel through solid rock or soil.
Examples
- The train travels through a long tunnel under the city.
- We had to dig a tunnel to connect both sides of the hill.
- Many tunnels are built for safety during bad weather or emergencies.
Meaning
In a broader sense, a tunnel can refer to any structure that facilitates movement beneath or through an obstruction, such as a mountain or a body of water.
Synonyms
- passage
- tube
- conduit