We admired their 'fluent' [='fluid'] movement across the dance floor.
She speaks 'fluent' Spanish and a little French.
He speaks seven languages 'fluently'.
(..) - R-U-S-H-M-A-N. - What are you gonna google her now? - I thought I was ogling her. - Oh wow. Very, very impressive individual... - You're so predictable, you know that? she's fluent in French, Italian, Russian, Latin... Who speaks Latin? No one speaks Latin. It's a dead language. speak Latin so... (..)2010 Iron Man 2