fluent
adj.adj. able to speak or write a language easily, well, and without stopping. You use this to describe someone who has mastered a language or a skill so it flows naturally.
adj. able to express oneself easily and articulately in a foreign language or a specific field. Often used to describe the flow of speech or the smooth, graceful quality of physical movements.
She is fluent in both English and Spanish.
After living in Berlin for three years, he became fluent enough to handle complex legal negotiations in German.
The candidate's resume claimed she was fluent in several programming languages, though the technical interview revealed her knowledge was limited to basic syntax rather than architectural logic.
From Latin fluens (“flowing”), present active participle of fluō (“I flow”).
Typically followed by the preposition 'in' when referring to a language or skill.
She speaks a fluent SpanishShe speaks fluent SpanishWhen describing language ability, 'fluent' usually modifies the language directly without an article, or describes the person ('She is fluent').