 “Implicature” denotes either (i) the act of meaning or implying one thing by saying something else, or (ii) the object of that act. Implicatures can be determined by sentence meaning or by conversational context, and can be conventional (in different senses) or unconventional. Figures of speech such as metaphor and irony provide familiar examples, as do loose use and damning with faint praise. Implicature serves a variety of goals: communication, maintaining good social relations, misleading without lying, style, and verbal efficiency. Knowledge of common forms of implicature is acquired along with one’s native language.