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Noun: postbag  'powst,bag
Usage: Brit (N. Amer: mailbag)
  1. Letter carrier's shoulder bag
    "in Britain they call a mailbag a postbag";
    - mailbag [N. Amer]
  2. Pouch used in the shipment of mail
    - mailbag [N. Amer], mail pouch

Derived forms: postbags

Type of: bag, pouch

Encyclopedia: Postbag