food that fulfills the requirements of Jewish dietary law
"We need to check if the chicken at the deli is kosher before we order it for tonight's dinner."
To kasher; to prepare (for example, meat) in conformity with the requirements of the Jewish law.
"The rabbi inspected every corner of the kitchen before supervising how they would kosher the new oven for Passover."
proper or legitimate
"After checking the receipts, I was relieved that all our expenses were kosher for the tax audit."
Fit for use or consumption, in accordance with Jewish law (especially relating to food).
"We had to wait an hour because the chef wasn't sure if the chicken was still kosher after being stored next to non-kosher meats."
In a kosher manner; in accordance with kashrut.
"We need to make sure every dish on the menu is prepared entirely according to traditional Jewish dietary laws before we can serve it to our guests."