noun

• (zoology) An organic pocket in which a marsupial carries its young.
• (slang, dated, derogatory) A protuberant belly; a paunch.
• (botany) A silicle, or short pod, as of the shepherd's purse.

verb

• (transitive) To enclose within a pouch.
  "The beggar pouched the coin."
• (transitive) To transport within a pouch, especially a diplomatic pouch.
  "We pouched the encryption device to our embassy in Beijing."
• (of fowls and fish) To swallow.
  "And, to name no more, the common Heron hath its most remarkable Parts adapted to this Service; long Legs for wading; and a long Neck answerable thereto to reach Prey; a wide, extensive Throat to pouch it; long Toes, with strong hooked Talons […]"
• (obsolete, rare) To pout.
  "He pouched his mouth, and reared himself up and swelled; but answered me not."