The Collaborative International Dictionary of English v.0.48:

Intellect \In"tel*lect\, 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]

WordNet (r) 3.0 (2006):

intellect
    n 1: knowledge and intellectual ability; "he reads to improve
         his mind"; "he has a keen intellect" [syn: mind,
         intellect]
    2: the capacity for rational thought or inference or
       discrimination; "we are told that man is endowed with reason
       and capable of distinguishing good from evil" [syn: reason,
       understanding, intellect]
    3: a person who uses the mind creatively [syn: intellectual,
       intellect]

Moby Thesaurus II by Grady Ward, 1.0:

82 Moby Thesaurus words for "intellect":
   Brahmin, IQ, apprehension, authority, brain, brains, brainworker,
   caliber, capacity, cleverness, common sense, comprehension,
   conception, consciousness, deductive power, doctor, egghead, elder,
   elder statesman, esemplastic power, genius, great soul, guru, head,
   highbrow, ideation, illuminate, integrative power, intellectual,
   intellectual grasp, intellectual power, intellectualism,
   intellectualist, intellectuality, intelligence,
   intelligence quotient, intuition, judgement, knowledge, literate,
   lover of wisdom, mahatma, man of intellect, man of wisdom,
   mandarin, master, mastermind, mental age, mental capacity,
   mental grasp, mental ratio, mentality, mentor, mind, mother wit,
   native wit, oracle, philosopher, power of mind, pundit, rabbi,
   rationality, reason, reasonableness, reasoning power, rishi, sage,
   sanity, sapient, savant, scholar, scope of mind, seer, sense,
   starets, thinker, thinking power, understanding,
   white-collar intellectual, wise man, wise old man, wit



The Free On-line Dictionary of Computing (30 December 2018):

INTELLECT

    A query language written by Larry Harris in 1977,
   close to natural English.

   (1995-04-14)