/'kəʊʃə(r); `koʃɚ/
adj
1 (of food, food shops, etc) fulfilling the requirements of Jewish dietary law （指食物、饮食店等）合礼的（符合犹太教规戒律的）
*a kosher butcher's, restaurant, meal 合礼的肉店、餐馆、饭食.
2 (infml 口) genuine or legitimate 真正的; 合法的
*the real kosher article, not just any old rubbish 真正的正品, 并不是什么旧的破烂货
* something not quite kosher about the way he made his money 他的钱来路不大正.

adj
[Date: 1800-1900; Language: Yiddish;Origin:Hebrew kasher 'fit, suitable']
a) kosher food is prepared according to Jewish law
b) kosher restaurants or shops sell food prepared in this way
informal something that is kosher is honest, legal, or really what it is claimed to be
　Are you sure this offer is kosher?