[mass noun]the quality of being outstanding or extremely good 优秀;卓越;杰出 awards for excellence. 优秀奖。 a centre of academic excellence. 一个学术卓著的中心。 ■[count noun](archaic)an outstanding feature or quality (古)优点;美德
语源
late Middle English: from Latin excellentia, from the verb excellere 'surpass' (see excel)