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English definition of “or”

or

conjunction     strong /ɔːr/ weak /ər/
BETWEEN POSSIBILITIES A1 used between possibilities, or before the last in a list of possibilities: Would you like toast or cereal? Is that a boy or a girl? You can have beer, wine, or mineral water. The house will take two or three years to complete.Either, or, neither, nor
CHANGE B2 used to change or correct something you have said: We told the truth, or most of it.Either, or, neither, nor
REASON used to give a reason for something you have said: She must love him or she wouldn't have stayed with him all these years.Either, or, neither, nor
NOT EITHER A2 used after a negative verb between a list of things to mean not any of those things or people: Tim doesn't eat meat or fish. She doesn't have a telephone or a fax machine.Either, or, neither, nor
(Definition of or conjunction from the Cambridge Learner's Dictionary © Cambridge University Press)

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