1. direct perception of truth, fact, etc., independent of any reasoning process; immediate apprehension.
2. a fact, truth, etc., perceived in this way.
3. a keen and quick insight.
4. the quality or ability of having such direct perception or quick insight.
5. Philosophy: a) an immediate cognition of an object not inferred or determined by a previous cognition of the same object. b) any object or truth so discerned. c) pure, untaught, noninferential knowledge.
Etymology: from Late Latin intuition, “a contemplation”, from Latin intuērī, “to gaze upon”, from tuērī, “to look at”.