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English definition of “say-so”

say-so

noun [S] (PERMISSION)    /ˈseɪ.səʊ/ US  /-soʊ/ informal
an instruction to do something, or permission given by someone to do something: She's not allowed to do anything without her father's say-so.Allowing and permitting
(Definition of say-so noun (PERMISSION) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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