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basis
/ˈbeɪsɪs/ noun [C] (plural bases /ˈbeɪsiːz/)Definition
on a daily/monthly/regular, etc basis › how often something happens or is done: Meetings are held on a weekly basis.
on a commercial/full-time/percentage, etc basis › the way something happens or is organized: We will consider claims for asylum on a case by case basis.
REASON › the reason for something: Marks are awarded on the basis of progress and performance. There is no legal basis for his claim.
DEVELOPMENT › a situation, fact, or idea from which something can develop: Dani's essay can serve as a basis for our discussion.
(Definition of basis noun from the Cambridge Learner's Dictionary
© Cambridge University Press)
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