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English definition of “opener”

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opener

noun uk   /ˈəʊ.pən.ər/ us    /ˈoʊ.pən.ɚ/
bottle, can, tin, etc. opener [C] a device for opening closed containers
for openers informal first: Just for openers, I'd like to ask a question.
(Definition of opener from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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