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theory    音标拼音: [θ'ɪri] [θ'iɚi]
n. 原理,理论;C学说;C意见,推测

原理,理论;C学说;C意见,推测

theory
理论

theory
理论

theory
n 1: a well-substantiated explanation of some aspect of the
natural world; an organized system of accepted knowledge
that applies in a variety of circumstances to explain a
specific set of phenomena; "theories can incorporate facts
and laws and tested hypotheses"; "true in fact and theory"
2: 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" [synonym: {hypothesis}, {possibility},
{theory}]
3: a belief that can guide behavior; "the architect has a theory
that more is less"; "they killed him on the theory that dead
men tell no tales"

Theory \The"o*ry\, n.; pl. {Theories}. [F. th['e]orie, L.
theoria, Gr. ? a beholding, spectacle, contemplation,
speculation, fr. ? a spectator, ? to see, view. See
{Theater}.]
1. A doctrine, or scheme of things, which terminates in
speculation or contemplation, without a view to practice;
hypothesis; speculation.
[1913 Webster]

Note: "This word is employed by English writers in a very
loose and improper sense. It is with them usually
convertible into hypothesis, and hypothesis is commonly
used as another term for conjecture. The terms theory
and theoretical are properly used in opposition to the
terms practice and practical. In this sense, they were
exclusively employed by the ancients; and in this
sense, they are almost exclusively employed by the
Continental philosophers." --Sir W. Hamilton.
[1913 Webster]

2. An exposition of the general or abstract principles of any
science; as, the theory of music.
[1913 Webster]

3. The science, as distinguished from the art; as, the theory
and practice of medicine.
[1913 Webster]

4. The philosophical explanation of phenomena, either
physical or moral; as, Lavoisier's theory of combustion;
Adam Smith's theory of moral sentiments.
[1913 Webster]

{Atomic theory}, {Binary theory}, etc. See under {Atomic},
{Binary}, etc.
[1913 Webster]

Syn: Hypothesis, speculation.

Usage: {Theory}, {Hypothesis}. A theory is a scheme of the
relations subsisting between the parts of a systematic
whole; an hypothesis is a tentative conjecture
respecting a cause of phenomena.
[1913 Webster] Theosoph

92 Moby Thesaurus words for "theory":
apprehension, assumption, attitude, base, basis, body of theory,
climate of opinion, common belief, community sentiment, conceit,
concept, conception, conclusion, conjecture, consensus gentium,
consideration, estimate, estimation, ethos, explanation, eye,
fancy, feeling, general belief, grounds, guess, guesswork,
harmonics, harmony, hunch, hypothesis, idea, image, imago,
impression, intellectual object, judgment, lights, melodics,
memory-trace, mental image, mental impression, mind, music,
music theory, musicality, musicography, musicology, mystique,
notion, observation, opinion, perception, perhaps,
personal judgment, point of view, popular belief, position,
posture, premise, presentiment, presumption, prevailing belief,
public belief, public opinion, reaction, recept, reflection,
representation, rhythmics, sentiment, sight, speculation, stance,
supposal, suppose, supposition, surmise, suspicion,
tentative explanation, theoretical structure, there, thinking,
thither, thitherward, thought, understanding, unified theory, view,
way of thinking, yon, yonder

The consensus, idea, plan, story, or set of rules that is
currently being used to inform a behaviour. This usage is a
generalisation and (deliberate) abuse of the technical
meaning. "What's the theory on fixing this TECO loss?"
"What's the theory on dinner tonight?" ("Chinatown, I
guess.") "What's the current theory on letting lusers on
during the day?" "The theory behind this change is to fix the
following well-known screw...."

(1994-12-14)

theory: n. The consensus, idea, plan, story, or set of rules that is currently
being used to inform a behavior. This usage is a generalization and
(deliberate) abuse of the technical meaning. “What's the theory on
fixing this TECO loss?” “What's the theory on dinner
tonight?” (“Chinatown, I guess.”) “What's the
current theory on letting lusers on during the day?” “The
theory behind this change is to fix the following well-known
screw....”


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  • Theory Official Site | Contemporary Clothing for Women and Men
    Thoughts, ideas, and stories from New Yorkers we love Join our mailing list for our latest updates and enjoy 15% off your first full price order Learn more about our privacy policy here
  • Theory - Wikipedia
    Theories are analytical tools for understanding, explaining, and making predictions about a given subject matter There are theories in many and varied fields of study, including the arts and sciences
  • THEORY Definition Meaning - Merriam-Webster
    Because of the rigors of experimentation and control, it is understood to be more likely to be true than a hypothesis is In non-scientific use, however, hypothesis and theory are often used interchangeably to mean simply an idea, speculation, or hunch, with theory being the more common choice
  • THEORY Definition Meaning | Dictionary. com
    In science, an explanation or model that covers a substantial group of occurrences in nature and has been confirmed by a substantial number of experiments and observations A theory is more general and better verified than a hypothesis (See Big Bang theory, evolution, and relativity )
  • Scientific theory | Definition, Characterization, Empirical Law . . .
    A scientific theory and a hypothesis differ primarily in that a theory is a well-established framework built upon extensive evidence, whereas a hypothesis is a testable prediction or explanation that is formulated as part of research or experimentation
  • THEORY | English meaning - Cambridge Dictionary
    THEORY definition: 1 a formal statement of the rules on which a subject of study is based or of ideas that are… Learn more
  • Scientific Theory Definition and Examples
    A theory explains why or how something works, while a law describes what happens without explaining it Often, you see laws written in the form of equations or formulas
  • Theory - Definition, Types and Examples - Research Method
    Theories are central to academic disciplines, offering a foundation for research, analysis, and application This article explores the definition of theory, its various types, and practical examples to demonstrate its significance across disciplines
  • Theory | Saks Fifth Avenue
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  • 36 Theory Examples - Most Famous Theories (2026)
    A theory is a set of coherent ideas and general principles that can be used to make meaning of the world around us





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