valid Meaning, definition in Cambridge English Dictionary
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Meaning of "valid" - English Dictionary

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validadjective

uk   us   /ˈvæl.ɪd/
B2 based on truth or reason; able to be accepted: a valid argument/criticism/reason My way of thinking might be different from yours, but it's equally valid.
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B2 A ticket or other document is valid if it is based on or used according to a set of official conditions that often include a time limit: My passport is valid for another two years. having legal force: Is this contract/ticket/agreement still valid?
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validity
noun [U] uk   /vəˈlɪd.ɪ.ti/  us   /vəˈlɪd.ə.t̬i/
C2 This research seems to give/lend some validity to the theory that the drug might cause cancer.
validly
adverb uk   us   /-li/
(Definition of valid from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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