underground passage
Definitions
A tunnel or subterranean walkway designed for pedestrian or vehicular movement beneath the ground.
A covered path or corridor located below the surface level, often used to cross under roads or buildings.
Examples
The pedestrians used the underground passage to cross the busy highway safely.
Local legends suggest that an ancient underground passage connects the castle to the nearby river.
Synonyms
Antonyms
bridge overpass viaduct surface path elevated walkway skyway