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English definition of “box”

box

noun [C] (ADDRESS)    /bɒks/ US  /bɑːks/ (also box number)
a number that you can give instead of your address, especially in newspaper advertisements: Please reply to Box 307, The Times, London.The postal system
(Definition of box noun (ADDRESS) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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