a mark that tells you how good sth is in sb's opinion 星级◆This printer received a top rating of five stars from ‘Your PC’ magazine. 这款打印机得到了《你的个人电脑》杂志五星级的最高评级。
a thing or person that is the best of a group （团体中）最优秀者◆The company has become the star of its sector. 这家公司是其行业中的佼佼者。
in theBoston Matrix , a product that has a large market share in a market that is growing very quickly 明星产品（波士顿矩阵中的在成长很快的市场中拥有很大市场份额的产品）➡ picture at Boston Matrix