Definition of hypothesis in English:


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nounplural noun hypotheses/-ˌsēz/

  • 1A supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.

    ‘professional astronomers attacked him for popularizing an unconfirmed hypothesis’
    • ‘The only thing you can do is say the evidence suggests that the hypothesis is true.’
    • ‘Well, everyone comes at an investigation with certain hypotheses or certain biases.’
    • ‘All you will ever have is circumstantial evidence and an un-falsifiable hypothesis.’
    • ‘Even a religion that stresses faith above all else seeks evidence to confirm its hypotheses.’
    • ‘The conceptual peg hypothesis provides a theoretical explanation of the difference.’
    • ‘I think it's important to note that what I'm proposing here is a hypothesis rather than a conclusion.’
    • ‘The scientific method involves proposing a hypothesis then trying to disprove it.’
    • ‘In the seventeenth century, a number of hypotheses had been proposed for the origin of fossils.’
    • ‘All scientists do is try to generalise hypotheses from evidence and then attempt to test them in future.’
    • ‘Embedded within the hypothesis will be concepts that will need to be translated into researchable entities.’
    • ‘The hypothesis is that the view from the castle will be so spoiled that it will put off visitors.’
    • ‘This variation is poorly understood, and several hypotheses have been proposed.’
    • ‘All of those hypotheses were proposed indirectly and may not be mutually exclusive to each other.’
    • ‘Several hypotheses have been proposed to explain the number of times segmentation arose.’
    • ‘Almost all were rhetorical or editorial, with some offering explanatory hypotheses or sociological theories.’
    • ‘Three hypotheses may be proposed to account for this unanticipated observation.’
    • ‘Different hypotheses have been proposed to explain the mechanism of attachment.’
    • ‘We use the emergence of these patterns as hypotheses that may be investigated in real fish schools.’
    • ‘There are several hypotheses or models proposed to explain how feedback limitation of photosynthesis may be regulated.’
    • ‘Several hypotheses can be proposed to explain why variance increases with longer intervals.’
    theory, theorem, thesis, conjecture, supposition, speculation, postulation, postulate, proposition, premise, surmise, assumption, presumption, presupposition
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    1. 1.1Philosophy A proposition made as a basis for reasoning, without any assumption of its truth.
      with clause ‘the hypothesis that every event has a cause’
      • ‘Popper consistently has opposed the appeal to inductive arguments to justify hypotheses.’
      • ‘In what way could the hypothesis that McFadden's process is consciousness be falsified?’
      • ‘This allows a test of the hypothesis that central tendency determines typicality.’
      • ‘The second example of Hobbes's hypotheses about the physical world which I want to consider is his idea about the nature of light.’
      • ‘If we act as if these ideas were true of reality, then we are led to formulate true hypotheses.’
      reason, reasons, reasoning, thinking, basis, logical basis, logic, grounds, sense
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/hīˈpäTHəsəs/ /haɪˈpɑθəsəs/


Late 16th century via late Latin from Greek hupothesis ‘foundation’, from hupo ‘under’ + thesis ‘placing’.