Pronunciation: (kō'shur),[key] —adj. 1. Judaism. a. fit or allowed to be eaten or used, according to the dietary or ceremonial laws: kosher meat; kosher dishes; a kosher tallith. b. adhering to the laws governing such fitness: a kosher restaurant. 2. Informal. a. proper; legitimate.
b. genuine; authentic.
3. keep kosher, to adhere to the dietary laws of Judaism.