5 words in this vocabulary list
noun the unjust or prejudicial treatment of different categories of people or things, especially on the grounds of race, age, or sex
noun the act of associating or socializing with others in a friendly or familiar manner
verb to return like for like; to repay an injury or wrong
noun a person who secretly gives information to the authorities or to someone in authority
verb to inform on someone; to secretly give information to the authorities or to someone in authority
verb to inform on or betray someone, especially to the authorities