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English definition of “basis”

basis

noun [C] (IMPORTANT FACTS)    /ˈbeɪ.sɪs/ (plural bases   /-siːz/   )
C1 the most important facts , ideas , etc. from which something is developed : This document will form the basis for our discussion . Their proposals have no proven scientific basis. Decisions were often made on the basis of (= using) incorrect information .Being based on or depending on something
(Definition of basis noun (IMPORTANT FACTS) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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