The intentional causing of somebody's experiencing of agony, usually as an interrogation technique or punishment.

(chiefly literary) The "suffering of the heart" imposed by one on another, as in personal relationships.

(colloquial) (often as "absolute torture") Stage fright; severe embarrassment.

(transitive) To intentionally inflict severe pain or suffering on (someone), usually with the aim of forcing confessions i or punishing them.