underpass

noun

un·​der·​pass ˈən-dər-ˌpas 

: a crossing of a highway and another way (such as a road or railroad) at different levels

also : the lower level of such a crossing

Examples of underpass in a Sentence

We stood on the bridge and looked down at the underpass.

Recent Examples on the Web

That includes $10 million for the underpass and about $2 million for a traffic signal at Avimor Drive and several collector roads built during the project’s early phases. — Noah Daly july 17, Idaho Statesman, 17 July 2026

Flash flooding of small creeks, streams, urban areas, highways, streets and underpasses, as well as areas with poor drainage and low-lying areas, was possible. — Kansas City Star, 16 July 2026

In addition, the current plans call for 3 wildlife corridor/trail underpasses. — Scott Maxwell, The Orlando Sentinel, 10 July 2026

People should expect flooding of small creeks and streams, roads, underpasses, urban areas and other low-lying or poor-drainage locations. — Jen Guadarrama, IndyStar, 22 June 2026

Word History

First Known Use

1903, in the meaning defined above

Rhymes for underpass

• fiberglass
• fibreglass
• hourglass
• isinglass
• lemongrass
• martinmas
• orchardgrass
• overpass
• plexiglas
• plexiglass
• sassafras
• superclass

Kids Definition

underpass

noun

un·​der·​pass -ˌpas 

: a passage underneath something (as for a road passing under another road)