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English definition of “postbox”

postbox

noun [C] uk   /ˈpəʊst.bɒks/ us    /ˈpoʊst.bɑːks/ UK (US mailbox)
a metal container in the street or other public place in which you can post letters. In the UK these are bright red.The postal system
(Definition of postbox from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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