Tunnel
Emergence definition
An underground passage, typically man-made, that allows for movement or transportation beneath the earth's surface.
Wiktionary senses
Historical origin
Prerequisite chain
Neighborhood
In other languages
Prerequisites
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An architectural concept relating to tunnel, involving building design, construction, or spatial planning.
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Underground passage -- prerequisite: earth
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Underground passage -- prerequisite: road
Used by
- Esker L6