The Collaborative International Dictionary of English v.0.48:

Intuition \In`tu*i"tion\, n. [L. intuitus, p. p. of intueri to
   look on; in- in, on + tueri: cf. F. intuition. See
   Tuition.]
   [1913 Webster]
   1. A looking after; a regard to. [Obs.]
      [1913 Webster]

            What, no reflection on a reward! He might have an
            intuition at it, as the encouragement, though not
            the cause, of his pains.              --Fuller.
      [1913 Webster]

   2. Direct apprehension or cognition; immediate knowledge, as
      in perception or consciousness; -- distinguished from
      "mediate" knowledge, as in reasoning; as, the mind knows
      by intuition that black is not white, that a circle is not
      a square, that three are more than two, etc.; quick or
      ready insight or apprehension.
      [1913 Webster]

            Sagacity and a nameless something more, -- let us
            call it intuition.                    --Hawthorne.
      [1913 Webster]

   3. Any object or truth discerned by intuition.
      [1913 Webster]

   4. Any quick insight, recognized immediately without a
      reasoning process; a belief arrived at unconsciously; --
      often it is based on extensive experience of a subject.
      [PJC]

   5. The ability to have insight into a matter without
      conscious thought; as, his chemical intuition allowed him
      to predict compound conformations without any conscious
      calculation; a mother's intuition often tells her what is
      best for her child.
      [PJC]

WordNet (r) 3.0 (2006):

intuition
    n 1: instinctive knowing (without the use of rational processes)
    2: an impression that something might be the case; "he had an
       intuition that something had gone wrong" [syn: intuition,
       hunch, suspicion]

The Free On-line Dictionary of Computing (19 January 2023):

Intuition

    The Amiga windowing system (a
   shared-code library).

   (1997-08-01)