kosher
adj. B2 Upper Intermediate US //ˈkoʊʃɝ// UK //kˈəʊʃɐ// kosher
adj. describing food that is prepared according to Jewish law. In a more general way, it means something is honest, legal, or correct.
adj. conforming to Jewish dietary laws; in a broader secular context, satisfying requirements of legitimacy, honesty, or correctness. Often used predicatively to describe a situation or deal.
The restaurant serves only kosher meat.
The lawyer checked the contract to make sure the entire deal was completely kosher.
Borrowed from Yiddish כּשר (kosher), from Hebrew כָּשֵׁר (kashér).
Usage
Often follows a linking verb like 'be' or 'seem' when used in its informal sense of 'legitimate'.