kosher, adj. 1. Informal, genuine, real, Dial, sure-enough, simon-pure, pure, sterling; the real McCoy; bonafide, veritable, Inf. honest-to-goodness, Archaic. authentical, Australian, dinkum.
2. Informal, legitimate, rightful, lawful, just, legal, licit; standard, accepted, approved, conventional, orthodox, according to Hoyle; proper, acceptable, fitting, fit; permitted, allowed, OK'd.
kowtow, v. 1. bow, kneel before, salaam, genuflect; prostrate oneself, fall on one's knees, lie prone, throw oneself at the feet of; humble oneself to, defer to, stoop, get down.