1.  intuition(n = noun.cognition) - instinctive knowing (without the use of rational processes);
is a kind of basic cognitive process
has particulars: feeling, intuitive feeling, gnosis, insight, sixth sense, immediacy, immediate apprehension, inspiration
Derived form verb intuit₁

2.  intuition(n = noun.cognition) hunch, suspicion - an impression that something might be the case; "he had an intuition that something had gone wrong"
is a kind of belief, feeling, impression, notion, opinion
has particulars: bosom, heart
Derived form verb intuit₁

1.  A looking after; a regard to. [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." [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." [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]

intuition, n.
1 immediate apprehension by the mind without reasoning.
2 immediate apprehension by a sense.
3 immediate insight.

Derivative:
intuitional adj.

Etymology:
LL intuitio (as INTUIT)

N  intellect, mind, understanding, reason, thinking principle, rationality, cogitative faculties, cognitive faculties, discursive faculties, reasoning faculties, intellectual faculties, faculties, senses, consciousness, observation, percipience, intelligence, intellection, intuition, association of ideas, instinct, conception, judgment, wits, parts, capacity, intellectuality, genius, brains, cognitive powers, intellectual powers, wit, ability, wisdom, Vernunft, Verstand, soul, spirit, ghost, inner man, heart, breast, bosom, penetralia mentis, divina particula aurae, heart's core, the Absolute, psyche, subliminal consciousness, supreme principle, brain, organ of thought, seat of thought, sensorium, sensory, head, headpiece, pate, noddle, noggin, skull, scull, pericranium, cerebrum, cranium, brainpan, sconce, upper story, central processing unit, CPU, arithmetic and logical unit, ALU, metaphysics, psychics, psychology, ideology, mental philosophy, moral philosophy, philosophy of the mind, pneumatology, phrenology, craniology, cranioscopy, ideality, idealism, transcendentalism, spiritualism, immateriality, universal concept, universal conception, metaphysician, psychologist, intellectual, mental, rational, subjective, metaphysical, nooscopic, spiritual, ghostly, psychical, psychological, cerebral, animastic, brainy, hyperphysical, superphysical, subconscious, subliminal, immaterial, endowed with reason, in petto, ens rationis, frons est animi janua, locos y ninos dicen la verdad, mens sola loco non exulat, my mind is my kingdom, stern men with empires in their brains, the mind, the music breathing from her face, thou living ray of intellectual Fire.

N  intuition, instinct, association, hunch, gut feeling, presentiment, premonition, rule of thumb, superstition, astrology, faith (supposition), sophistry, paralogy, perversion, casuistry, jesuitry, equivocation, evasion, chicane, chicanery, quiddet, quiddity, mystification, special pleading, speciousness, nonsense, word sense, tongue sense, false reasoning, vicious reasoning, circular reasoning, petitio principii, ignoratio elenchi, post hoc ergo propter hoc, non sequitur, ignotum per ignotius, misjudgment, false teaching, sophism, solecism, paralogism, quibble, quirk, elenchus, elench, fallacy, quodlibet, subterfuge, subtlety, quillet, inconsistency, antilogy, a delusion, a mockery, and a snare, claptrap, cant, mere words, lame and impotent conclusion, meshes of sophistry, cobwebs of sophistry, flaw in an argument, weak point, bad case, overrefinement, hairsplitting, intuitive, instinctive, impulsive, independent of reason, anterior to reason, gratuitous, hazarded, unconnected, unreasonable, illogical, false, unsound, invalid, unwarranted, not following, inconsequent, inconsequential, inconsistent, absonous, absonant, unscientific, untenable, inconclusive, incorrect, fallacious, fallible, groundless, unproved, non sequitur, it does not follow, deceptive, sophistical, jesuitical, illusive, illusory, specious, hollow, plausible, ad captandum, evasive, irrelevant, weak, feeble, poor, flimsy, loose, vague, irrational, nonsensical, foolish, frivolous, pettifogging, quibbling, finespun, overrefined, at the end of one's tether, au bout de son latin, intuitively, by intuition, illogically, non constat, that goes for nothing.

N  knowledge, cognizance, cognition, cognoscence, acquaintance, experience, ken, privity, insight, familiarity, comprehension, apprehension, recognition, appreciation, intuition, conscience, consciousness, perception, precognition, acroamatics, light, enlightenment, glimpse, inkling, glimmer, glimmering, dawn, scent, suspicion, impression, discovery, system of knowledge, body of knowledge, science, philosophy, pansophy, acroama, theory, aetiology, etiology, circle of the sciences, pandect, doctrine, body of doctrine, cyclopedia, encyclopedia, school, tree of knowledge, republic of letters, erudition, learning, lore, scholarship, reading, letters, literature, book madness, book learning, bookishness, bibliomania, bibliolatry, information, general information, store of knowledge, education, culture, menticulture, attainments, acquirements, acquisitions, accomplishments, proficiency, practical knowledge, liberal education, dilettantism, rudiments, deep knowledge, profound knowledge, solid knowledge, accurate knowledge, acroatic knowledge, acroamatic knowledge, vast knowledge, extensive knowledge, encyclopedic knowledge, encyclopedic learning, omniscience, pantology, march of intellect, progress of science, advance of science, advance of learning, schoolmaster abroad, scholar, knowing, cognitive, acroamatic, aware of, cognizant of, conscious of, acquainted with, made acquainted with, privy to, no stranger to, au fait with, au courant, in the secret, up to, alive to, behind the scenes, behind the curtain, let into, apprized of, informed of, undeceived, proficient with, versed with, read with, forward with, strong with, at home in, conversant with, familiar with, erudite, instructed, leaned, lettered, educated, well conned, well informed, well read, well grounded, well educated, enlightened, shrewd, savant, blue, bookish, scholastic, solid, profound, deep-read, book- learned, accomplished, omniscient, self-taught, known, ascertained, well-known, recognized, received, notorious, noted, proverbial, familiar, familiar as household words, familiar to every schoolboy, hackneyed, trite, trivial, commonplace, cognoscible, cognizable, to one's knowledge, to the best of one's knowledge, one's eyes being opened, ompredre tout c'est tout pardonner, to know all is to pardon all, empta dolore docet experientia, gnothi seauton, half our knowledge we must snatch not take, Jahre lehren mehr als Bucher, years teach more than books, knowledge comes but wisdom lingers, knowledge is power, les affaires font les hommes, nec scire fas est omnia, the amassed thought and experience of innumerable, was ich nicht weiss macht mich nicht heiss.