1. In a way that is smooth, easy, and natural; without hesitation or difficulty
She speaks English fluently after living abroad for five years.
Ela fala inglês fluentemente depois de ter vivido no exterior por cinco anos.
2. With the ability to express oneself easily and articulately in a language
He reads French fluently but struggles with writing.
Ele lê francês fluentemente, mas tem dificuldade em escrever.