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hypothesis

noun [C]
 
 
/haɪˈpɒθ.ə.sɪs/ US  /-ˈpɑː.θə-/ (plural hypotheses)

Definition

C2 an idea or explanation for something that is based on known facts but has not yet been proved: Several hypotheses for global warming have been suggested.Ideas, concepts and theories
(Definition of hypothesis noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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