diplomatic pouch: a mail pouch that is sealed shut and that is used to carry communications between a legation and its home office
mailbag: pouch used in the shipment of mail
commelinidae: one of four subclasses or superorders of Monocotyledones; comprises about 19,000 species in 25 families of mostly terrestrial herbs especially of moist places including: Cyperaceae; Gramineae; Bromeliaceae; and Zingiberaceae