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

This incident comes just days after two out-of-state men were arrested for spray-painting antisemitic graffiti and swastikas on residential fences, an underpass and near businesses in Sterling Heights. —Joseph Buczek, CBS News, 23 Apr. 2026

To construct the Alexander polynomial, imagine that at each crossing, there’s an optional down ramp from the overpass to the underpass. —Erica Klarreich, Quanta Magazine, 22 Apr. 2026

In this region, flooding is possible across creeks, streams, urban areas, highways, streets and underpasses. —Anthony Franze, San Antonio Express-News, 20 Apr. 2026

Later, the host dons a hard hat to tour a multi-billion-dollar, decades-long project that will ease freight and passenger train bottlenecks with new bridges and underpasses. —Philip Potempa, Chicago Tribune, 16 Apr. 2026

Word History

First Known Use

1903, in the meaning defined above

Rhymes for underpass

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

Kids Definition

underpass

noun

un·​der·​pass -ˌpas 

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