S: (n) category (a general concept that marks divisions or coordinations in a conceptual scheme)
S: (n) rule, regulation (a principle or condition that customarily governs behavior) "it was his rule to take a walk before breakfast"; "short haircuts were the regulation"
S: (n) property, attribute, dimension (a construct whereby objects or individuals can be distinguished) "self-confidence is not an endearing property"
S: (n) abstraction, abstract (a concept or idea not associated with any specific instance) "he loved her only in the abstract--not in person"
S: (n) quantity (the concept that something has a magnitude and can be represented in mathematical expressions by a constant or a variable)
S: (n) part, section, division (one of the portions into which something is regarded as divided and which together constitute a whole) "the written part of the exam"; "the finance section of the company"; "the BBC's engineering division"
S: (n) whole (all of something including all its component elements or parts) "Europe considered as a whole"; "the whole of American literature"
S: (n) law, natural law (a rule or body of rules of conduct inherent in human nature and essential to or binding upon human society)
S: (n) law, law of nature (a generalization that describes recurring facts or events in nature) "the laws of thermodynamics"
S: (n) hypothesis, possibility, theory (a tentative insight into the natural world; a concept that is not yet verified but that if true would explain certain facts or phenomena) "a scientific hypothesis that survives experimental testing becomes a scientific theory"; "he proposed a fresh theory of alkalis that later was accepted in chemical practices"
S: (n) fact (a concept whose truth can be proved) "scientific hypotheses are not facts"
S: (n) plan, program, programme (a series of steps to be carried out or goals to be accomplished) "they drew up a six-step plan"; "they discussed plans for a new bond issue"
S: (n) figment (a contrived or fantastic idea) "a figment of the imagination"
S: (n) suggestion (an idea that is suggested) "the picnic was her suggestion"
S: (n) impression, feeling, belief, notion, opinion (a vague idea in which some confidence is placed) "his impression of her was favorable"; "what are your feelings about the crisis?"; "it strengthened my belief in his sincerity"; "I had a feeling that she was lying"
S: (n) reaction (an idea evoked by some experience) "his reaction to the news was to start planning what to do"
S: (n) theorem (an idea accepted as a demonstrable truth)
S: (n) notion, whim, whimsy, whimsey (an odd or fanciful or capricious idea) "the theatrical notion of disguise is associated with disaster in his stories"; "he had a whimsy about flying to the moon"; "whimsy can be humorous to someone with time to enjoy it"
S: (n) meaning, substance (the idea that is intended) "What is the meaning of this proverb?"
S: (n) burden (the central idea that is expanded in a document or discourse)
S: (n) theme, motif (a unifying idea that is a recurrent element in literary or artistic work) "it was the usual `boy gets girl' theme"
S: (n) ideal (the idea of something that is perfect; something that one hopes to attain)