A person's taste or flair in areas like fashion, interior design, or humor — often used to say someone has (or lacks) good sense/taste.
彼女は服のセンスがいいから、よく相談する。
She has good taste in clothes, so I often ask her for advice.
部屋の配置にセンスが感じられるね。
I can feel a sense of taste in how the room is arranged.
彼の冗談はセンスがあっていつも笑える。
His jokes have good timing/taste and always make me laugh.
その組み合わせはセンスがないと思うよ。
I think that combination shows poor taste.