intellect

noun

1. 1

   The faculty of thinking, judging, abstract reasoning, and conceptual understanding; the cognitive faculty (uncountable)

   “Intellect is one of man's greatest powers.”

2. 2

   The capacity of that faculty (in a particular person) (uncountable)

   “They were chosen because of their outstanding intellect.”

3. 3

   A person who has that faculty to a great degree

   “Some of the world's leading intellects were meeting there.”