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

Aviña’s work even caught the eye of pop-singer Joe Jonas, who wore an Argentina jersey featuring prayer hands and a message that read, “Protect me from envy” at a concert in Buenos Aires.

From Los Angeles Times • Jun. 5, 2026

His post-playing career started with the Buenos Aires university football team and, after two years there, he secured a position back at Newell's as a coach of the reserve team.

From BBC • Jun. 4, 2026

Epidemiologist Eduardo López, head of the Department of Medicine and Infectious Diseases at the Ricardo Gutiérrez Children's Hospital in Buenos Aires, said further investigation in the province is necessary.

From BBC • May 10, 2026

Though banned from public office, she still heads the largest Peronist party in the country from inside her Buenos Aires apartment.

From The Wall Street Journal • May 10, 2026

Once you reach Buenos Aires, take a hypertrain north, across Amazonia to the city of Caracas.

From "Scythe" by Neal Shusterman