pouch in WordNet English dictionary

1. swell or protrude outwards
   "His stomach bulged after the huge meal"
   bulge  pouch  protrude 
   
2. put into a small bag
   pouch 
   
3. send by special mail that goes through diplomatic channels
   pouch 
   

1. (anatomy) saclike structure in any of various animals (as a marsupial or gopher or pelican)
   pouch  pocket 
   
2. an enclosed space
   "the trapped miners found a pocket of air"
   pouch  sac  sack  pocket 
   
3. a small or medium size container for holding or carrying things
   pouch