Smooth and fluent; especially used for language ability (to speak a language smoothly without hesitation).
彼女は英語が流暢で、通訳の仕事もしている。
She is fluent in English and also works as an interpreter.
プレゼンテーションは流暢に行われ、聴衆の反応も良かった。
The presentation was delivered smoothly and the audience reacted well.
彼はフランス語を流暢に話す。
He speaks French fluently.