1. to speak formally and at length, typically to a large audience
The politician orated passionately about climate change.
O político fez um discurso apaixonado sobre as mudanças climáticas.
2. to speak in an elaborate, grandiloquent, or bombastic manner
He tends to orate rather than have a normal conversation.
Ele tende a falar de forma grandiosa em vez de ter uma conversa normal.