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Rio de Janeiro

American  
[ree-oh dey zhuh-nair-oh, -neer-oh, juh-, dee, duh, ree-oo di zhi-ney-roo] / ˈri oʊ deɪ ʒəˈnɛər oʊ, -ˈnɪər oʊ, dʒə-, di, də, ˈri ʊ dɪ ʒɪˈneɪ rʊ /

noun

  1. a seaport in SE Brazil: former capital.


Rio de Janeiro British  
/ ˈriːəʊ də dʒəˈnɪərəʊ /

noun

  1. a port in SE Brazil, on Guanabara Bay: the country's chief port and its capital from 1763 to 1960; backed by mountains, notably Sugar Loaf Mountain; founded by the French in 1555 and taken by the Portuguese in 1567. Pop: 11 469 000 (2005 est)

  2. a state of E Brazil. Capital: Rio de Janeiro. Pop: 14 724 475 (2002). Area: 42 911 sq km (16 568 sq miles)

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Rio de Janeiro Cultural  
  1. City in southeastern Brazil on the Atlantic Ocean. Second-largest city in Brazil, after São Paulo; its former capital; and its financial, commercial, transportation, and cultural center.


Discover More

Rio is famous as a tourist attraction. Especially popular are its beaches, particularly the Copacabana.

Rio's annual carnival is world-famous.

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Penalties are under way against the Netherlands in the Olympic final in Rio de Janeiro.

From BBC Aug. 18, 2026

The 26th International Aids Conference opened this week in Rio de Janeiro against the backdrop of deep US cuts to foreign aid introduced after President Donald Trump's return to the White House last year.

From BBC Jul. 31, 2026

She said the disappearance of a half dozen environmental activists in southern Mexico and deadly air pollution in Rio de Janeiro and Monterrey are attributed to Ternium.

From Los Angeles Times Jun. 21, 2026

The helicopters collided in Recreio dos Bandeirantes, a western suburb of Rio de Janeiro, then plummeted into the parking lot of an electric car dealership, setting ablaze around 20 cars, firefighters said.

From Barron's Jun. 14, 2026

No one is more surprised than I am that the little girl with the big muscles ended up on a path from foster care to an Olympic stadium in Rio de Janeiro, Brazil.

From "Courage to Soar" by Simone Biles

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