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English definition of “postmark”

postmark

noun [C] uk   /ˈpəʊst.mɑːk/ us    /ˈpoʊst.mɑːrk/
an official mark put on a letter or parcel, typically showing the place that it was sent from and the time or date that it was sentThe postal system
postmark
verb [T] uk   us  
(Definition of postmark from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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