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’”

Source: WordNet® 3.1

Etymology 1


metro (plural metros)

An underground railway.

A train that runs on such an underground railway.

An urban rapid transit light railway

A train that runs on such a railway.


• (underground railway): subway, Tube (the London Underground), underground (UK), underground railway (UK)

Etymology 2


metro (plural metros)

a metropolitan area


metro (comparative more metro, superlative most metro)



• Moret, Tomer, Tormé

Source: Wiktionary


Word of the Day

27 September 2023


(noun) the act of retiring into inactivity; “he emerged from his hibernation to make his first appearance in several years”

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Coffee Trivia

The Boston Tea Party helped popularize coffee in America. The hefty tea tax imposed on the colonies in 1773 resulted in America switching from tea to coffee. In the lead up to the Revolutionary War, it became patriotic to sip java instead of tea. The Civil War made the drink more pervasive. Coffee helped energize tired troops, and drinking it became an expression of freedom.

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