Besides Brazil, Oi is also used in other Portuguese-speaking countries, such as Portugal and Angola. In these places, Oi is used to mean simple, natural and casual, which is very suitable for daily communication. When communicating with strangers or elders, it is recommended to use more formal greetings, such as Bom dia (good morning) or Boa tarde (good afternoon).
Oi as a greeting and other meaning. In Brazil, Oi is also used as the brand name of Oi Telephone Company, which is one of the largest communication companies in Brazil. In addition, Oi can also be used as an exclamation to express surprise, doubt or dissatisfaction, such as Oh Oi. This news is amazing! . To sum up, Oi is a multi-functional symbol of Brazilian culture, which is closely related to life.