1. The main meal of the day, typically eaten in the evening
We had dinner at seven o'clock.
Nós jantamos às sete horas.
2. A formal meal or banquet, often for social or business purposes
The company organized a dinner for the clients.
A empresa organizou um jantar para os clientes.
3. The meal eaten at midday (in some regions, particularly older usage)
In traditional households, dinner was served at noon.
Em casarões tradicionais, o jantar era servido ao meio-dia.