/ ˌpəʊst ˈrestɑːnt; NAmE ˌpoʊst reˈst-/ ( BrE ) ( NAmE ˌgeneral deˈlivery ) noun
[ U ] an arrangement in which a post office keeps a person's mail until they go to collect it, used especially when sb is travelling
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WORD ORIGIN
mid 18th cent.: from French , literally mail remaining .