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.

The capacity for higher forms of knowledge, as distinguished from the power to perceive objects in their relations; mental capacity.

A particular mind, especially a person of high intelligence; as, he was a great intellect.

the ability to understand the material and visible universe; the ability to learn, reason, think, and understand.