definition of
Sac

[1] #1 Sac n. [pouch, sac, sack, pocket] an enclosed space; "the trapped miners found a pocket of air". wn

[2] #2 Sac n. [theca, sac] a case or sheath especially a pollen sac or moss capsule. wn

[3] #3 Sac n. [Sauk] a member of the Algonquian people formerly living in Wisconsin in the Fox River valley and on the shores of Green Bay. wn

[4] #4 Sac n. [sac] a structure resembling a bag in an animal. wn