1. A formal, authorized action or process carried out by a government, military, or official institution
The military launched an official operation to secure the border.
O exército lançou uma operação oficial para garantir a segurança da fronteira.
2. A business or commercial activity that is legitimately registered and conducted according to legal regulations
The bank's official operations were temporarily suspended for maintenance.
As operações oficiais do banco foram temporariamente suspensas para manutenção.
3. In finance, a transaction or procedure performed through official channels
All currency exchange operations must go through official channels.
Todas as operações de câmbio devem passar por canais oficiais.