Fluent describes someone who can speak, read, or write a language easily and smoothly. It can also describe movement or writing that flows gracefully.
“Fluent” comes from Latin “fluens,” the present participle of “fluere,” meaning “to flow.” The idea of language as something that “flows” gave us the modern sense of fluency.
If you picture words as a stream of water, a fluent speaker is like a steady river—not a series of drops. That’s why we also talk about “fluent motion” and “fluid writing”—all from the same flow idea.
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