noun

• (uncountable, countable) Discernment, the act of discriminating, discerning, distinguishing, noting or perceiving differences between things, with the intent to understand rightly and make correct decisions.
• (uncountable, countable, sometimes with "against") Differential treatment of an individual or group to their disadvantage; treatment or consideration based on class or category rather than individual merit; partiality; prejudice; bigotry.
• (uncountable) The quality of being discriminating; acute discernment, especially in matters of good taste.
• (countable, obsolete) That which discriminates; a distinguishing mark, a characteristic.