Meaning of HYPOTHESIS in English

HYPOTHESIS

/ haɪˈpɒθəsɪs; NAmE -ˈpɑːθ-/ noun ( pl. hy·poth·eses / -siːz; NAmE /)

1.

[ C ] an idea or explanation of sth that is based on a few known facts but that has not yet been proved to be true or correct

SYN theory :

to formulate / confirm a hypothesis

a hypothesis about the function of dreams

2.

[ U ] guesses and ideas that are not based on certain knowledge

SYN speculation :

It would be pointless to engage in hypothesis before we have the facts.

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WORD ORIGIN

late 16th cent.: via late Latin from Greek hupothesis foundation, from hupo under + thesis placing.

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.