SUBWAY

metro, tube, underground, subway system, subway

(noun) an electric railway operating below the surface of the ground (usually in a city); “in Paris the subway system is called the ‘metro’ and in London it is called the ‘tube’ or the ‘underground’”

underpass, subway

(noun) an underground tunnel or passage enabling pedestrians to cross a road or railway

Source: WordNet® 3.1

Etymology

Noun

subway (plural subways)

(North America, Scotland) An underground railway, especially for mass transit of people in urban areas.

A train that runs on such an underground railway.

(US) A rapid transit system, regardless of the elevation of its right of way.

(British) An underground walkway, tunnel for pedestrians (called pedestrian underpass in US).

An underground route for pipes, sewers, etc.

Synonyms

(underground railway)

• metro; Métro (Paris)

• tube; Tube (London)

• underground, underground railway

(rapid transit system)

• rapid transit

(underground walkway)

• underpass

Verb

subway (third-person singular simple present subways, present participle subwaying, simple past and past participle subwayed)

(intransitive, US, informal) To travel by underground railway.

Anagrams

• busway

Source: Wiktionary

Sub"way`, n.

Definition: An underground way or gallery; especially, a passage under a street, in which water mains, gas mains, telegraph wires, etc., are conducted.

Source: Webster’s Unabridged Dictionary 1913 Edition