What is another word for under-pass?
Pronunciation: [ˌʌndəpˈas] (IPA) 
The word "under-pass" refers to a road or tunnel that goes beneath an obstacle, such as a bridge, railway, or overpass. Synonyms for "under-pass" include underpassage, subway, pedestrian underpass, tunnel, and underground crossing. All of these terms describe a pathway that allows people, vehicles, or trains to pass under an obstacle that would otherwise hinder their passage. The use of an under-pass can help maintain traffic flow and reduce the risk of accidents, especially in areas with heavy traffic. These synonyms can be used to describe similar structures that serve the same purpose, depending on the context and the location.
