Buenos Aires

American  

[bwey-nuhs ahyuhr-iz, boh-nuhs, bwe-naws ahy-res] / ˈbweɪ nəs ˈaɪər ɪz, ˈboʊ nəs, ˈbwɛ nɔs ˈaɪ rɛs /

noun

1. a seaport in and the capital of Argentina, in the eastern part, on the Río de la Plata.

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Buenos Aires British  

/ ˈbwenos ˈaires, ˈbweɪnɒs ˈaɪrɪz /

noun

1. the capital of Argentina, a major port and industrial city on the Río de la Plata estuary: became capital in 1880; university (1821). Pop: 13 349 000 (2005 est)

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Buenos Aires Cultural  

1. Capital of Argentina and largest city in the country, located in eastern Argentina near Uruguay.

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One of the largest cities in Latin America, Buenos Aires is Argentina's chief port and financial, industrial, commercial, and social center.

La Prensa and La Nación are two of its daily newspapers, popular throughout the Spanish-speaking world.

Example Sentences

At the Olivos Clinic in Buenos Aires, doctors detected a blood clot on his brain, which was removed during an emergency operation.

From The Wall Street Journal • Apr. 16, 2026

The case has gripped Argentina, with some of his fans holding up signs outside of the Buenos Aires court demanding “Justice for God,” a reference to Maradona’s status as a demigod.

From The Wall Street Journal • Apr. 16, 2026

At 15, a River Plate scout named Juanjo Borrelli needed only one training session to decide that this kid from a tiny Cordoban town had to come to Buenos Aires.

From BBC • Apr. 14, 2026

Netflix is expanding its Argentinian presence, as the global streamer opens new offices in Buenos Aires and reveals a new slate of forthcoming productions made in Argentina.

From Los Angeles Times • Apr. 8, 2026

He was a spent force long before he was finally caught in Buenos Aires near the end of the war.

From "The Woman All Spies Fear" by Amy Butler Greenfield