New Year's Eve celebrations in Brazil are commonly called Réveillon.
The Portuguese term refers to the country's New Year's festivities, especially large public celebrations such as the event at Rio de Janeiro's Copacabana Beach. Brazilian Réveillon customs can include fireworks, concerts, white clothing, dancing, and symbolic foods or rituals intended to welcome good fortune.
Réveillon is not the same event as Carnival. Carnival is a separate season of festivals and parades, generally occurring in February or March before Lent. The word Réveillon is also used in French-speaking contexts for a festive New Year's Eve meal or celebration, so its precise cultural meaning depends on the country and language.