subway

UK: ˈsʌbweɪ | US: ˈsʌbweɪ

Definition

  1. n. an underground railway system in a city

  2. n. a passage beneath a road or other obstacle

Structure
sub <under>way <path>
Etymology

The word "subway" combines the Latin prefix sub- (meaning "under") with the Old English root way (meaning "path" or "road"). It emerged in the 19th century to describe underground passages, later specifically referring to urban rail systems. The logical progression reflects literal spatial hierarchy—traveling under a main path.

Examples

  1. She takes the subway to work every morning.

  2. The new subway line reduced traffic congestion downtown.

  3. A pedestrian subway connects the two sides of the highway.

  4. The subway map clearly marks all transfer stations.

  5. During rush hour, the subway is extremely crowded.