Intellect (?), n. [L. intellectus, fr. intelligere, intellectum, to understand: cf. intellect. See Intelligent.]
1. (Metaph.) The part or faculty of the human mind by which it knows, as distinguished from the power to feel and to will; the power to judge and comprehend; the thinking faculty; the understanding.
[1913 Webster]
2. The capacity for higher forms of knowledge, as distinguished from the power to perceive objects in their relations; mental capacity.
[PJC]
3. A particular mind, especially a person of high intelligence; as, “he was a great intellect”.
[PJC]