vn. 1. A making or letting thrive and grow. 2. A purifying. 3. (law) A giving or taking the legal alms or poor-rate (زكات) of anything, so as purify it for use by its owner. 4. A deeming or pronouncing good and righteous. 5. (law) An investigating the antecedents of a witness, in order to know whether his testimony is receivable; also, a pronouncing a witness to be acceptable. 6. (law) A fitting an animal for food, by slaughtering it in a canonical manner, i. e., by severing the gullet, windpipe, and two jugulars or at least three of these. 7. “Even,” in the game of Odd or even (تخسیە و تزكیە).