1. An enclosed space
   "the trapped miners found a sac of air";
   - pouch, sack, pocket
    
2. A structure resembling a bag in an animal
   "The yolk sac provides nutrition to the developing embryo"
    
3. A case or sheath especially a pollen sac or moss capsule
   "The moss's spores were contained within a sac";
   - theca

1. A member of the Algonquian people formerly living in Wisconsin in the Fox River valley and on the shores of Green Bay
   - Sauk

Sounds like: sachets, sashays

Derived forms: sacs, Sacs

Type of: Algonquian, Algonquin, bodily cavity, cavity, cavum, cover, covering, enclosed space, natural covering

Encyclopedia: Sac