n. The act of distinguishing; the act of observing, making, or marking a difference; distinction: as, the discrimination between right and wrong.n. Specifically The power of distinguishing or discriminating; discriminative judgment; penetration: as, a man of discrimination.n. The state of being discriminated, distinguished, or set apart.n. That which serves to discriminate; a mark of distinction.n. Specifically An invidious distinction.n. Synonyms Discernment, clearness, acuteness, acumen, nicety, insight. See difference and discernment.