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English definition of “either”

either

adverb     /ˈaɪðər, ˈiːðər/
B1 used in negative sentences to mean that something else is also true: The menu is boring and it's not cheap either. I don't eat meat and Sam doesn't either.Also, extra, and in addition
(Definition of either adverb from the Cambridge Learner's Dictionary © Cambridge University Press)

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