1. The quality of speaking or writing a language smoothly, easily, and readily without many pauses or hesitations
She speaks English with great fluency.
Ela fala inglês com grande fluência.
2. The ability to express oneself easily and naturally in speech or writing
His fluency in three languages impressed everyone.
Sua fluência em três idiomas impressionou a todos.
3. Smooth, uninterrupted flow or continuity in movement or action
The fluency of the dancer's movements was mesmerizing.
A fluência dos movimentos da bailarina era hipnotizante.