noun ダウンロード 🔗共有 ワット In the International System of Units, the derived unit of power; the power of a system in which one joule of energy is transferred per second. Symbol: W Examples : "The light bulb uses 60 watts of power. " 電球は60ワットの電力を使用します。 energy physics unit science technical AIとチャット語彙ゲーム読解練習