What are some alternative words for theory?

Synonyms for theory
ˈθi ə ri, ˈθɪər i

This thesaurus page is about all possible synonyms, equivalent, same meaning and similar words for the term theory.

Princeton's WordNet

  1. theory(noun)

    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"

    Synonyms:
    possibility, hypothesis

  2. hypothesis, possibility, theory(noun)

    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"

    Synonyms:
    possibleness, surmisal, hypothesis, possibility, opening, guess, conjecture, possible action, supposition, surmise, speculation

  3. theory(noun)

    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"

    Synonyms:
    possibility, hypothesis

English Synonyms and Antonyms

  1. theory

    A hypothesis is a statement of what is deemed possibly true, assumed and reasoned upon as if certainly true, with a view of reaching truth not yet surely known; especially, in the sciences, a hypothesis is a comprehensive tentative explanation of certain phenomena, which is meant to include all other facts of the same class, and which is assumed as true till there has been opportunity to bring all related facts into comparison; if the hypothesis explains all the facts, it is regarded as verified; till then it is regarded as a working hypothesis, that is, one that may answer for present practical purposes. A hypothesis may be termed a comprehensive guess. A guess is a swift conclusion from data directly at hand, and held as probable or tentative, while one confessedly lacks material for absolute certainty. A conjecture is more methodical than a guess, while a supposition is still slower and more settled; a conjecture, like a guess, is preliminary and tentative; a supposition is more nearly final; a surmise is more floating and visionary, and often sinister; as, a surmise that a stranger may be a pickpocket. Theory is used of the mental coordination of facts and principles, that may or may not prove correct; a machine may be perfect in theory, but useless in fact. Scheme may be used as nearly equivalent to theory, but is more frequently applied to proposed action, and in the sense of a somewhat visionary plan. A speculation may be wholly of the brain, resting upon no facts worthy of consideration; system is the highest of these terms, having most of assurance and fixity; a system unites many facts, phenomena, or doctrines into an orderly and consistent whole; we speak of a system of theology, of the Copernican system of the universe. Compare SYSTEM.

    Synonyms:
    conjecture, guess, hypothesis, scheme, speculation, supposition, surmise, system

    Antonyms:
    certainty, demonstration, discovery, evidence, fact, proof

Complete Dictionary of Synonyms and Antonyms

  1. theory

    Synonyms:
    speculation, assumption, doctrine, scheme, system, supposition, hypothesis, plea

    Antonyms:
    fact, truth

Dictionary of English Synonymes

  1. theory(n.)

    Synonyms:
    speculation, hypothesis, assumption, conjecture, postulate, plan, scheme, system

  2. theory(n.)

    Synonyms:
    science, philosophy, doctrine, abstract principles

  3. theory(n.)

    Synonyms:
    exposition, rationale, reason

Synonyms, Antonyms & Associated Words

  1. theory(n)

    Synonyms:
    hypothesis

PPDB, the paraphrase database

  1. List of paraphrases:

    theoretical, theories, théorie, doctrine, teoría, doctrines, lilun, thesis, principle

How to pronounce theory?

Alex
Alex
US English
Daniel
Daniel
British
Karen
Karen
Australian
Veena
Veena
Indian

How to say theory in sign language?

  1. theory

Words popularity by usage frequency

rankword
#136system
#1649theory
#2265opening
#2773guess
#2803scheme
#4175possibility
#4225principle
#5989thesis
#6019theoretical
#6758theories
#7150assumption
#8627hypothesis
#8637doctrine
#12702plea
#14041speculation
#22312doctrines
#22736conjecture
#48037supposition
#66872surmise
#74739theorie
#96995teoria

How to use theory in a sentence?

  1. Francis Bacon:

    If any human being earnestly desire to push on to new discoveries instead of just retaining and using the old to win victories over Nature as a worker rather than over hostile critics as a disputant to attain , in fact, clear and demonstrative knowlegde instead of attractive and probable theory we invite him as a true son of Science to join our ranks.

  2. Elizabeth Regan:

    Smokers already get screened for lung cancer and they could in theory use the same CT scan image to look at bone density.

  3. Scott Amos:

    Scott Amos only theory is that it was a Christmas present my mom bought for Scott Amos and never actually gave to Scott Amos.

  4. President Arul Kanda:

    If we repay the bonds, in theory we can close down the company. So long as the bonds remain, the company will remain.

  5. John McInnes:

    It was working with the germ theory of the day, fresh air and sunlight were an important part of the curative process. There were a lot of times that was all we had to offer.


Translations for theory

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