Bursa sac or bursa Chorion Dural sac, a structure of spinal cord Egg sac, the reproductive structure of a spider Fecal sac Gestational sac Greater sac Gular skin or throat sac Ink sac Lacrimal sac, eye-and-nose-associated structure Lesser sac Ovule or embryo sac Pleural cavity or pleural sac Synovial sac, joint component Venom sac, in venom-secreting animals Vestibular sacs (disambiguation) Viscid sac Vocal sac Yolk sac Transportation Sacramento Executive Airport (IATA code) Sacramento Valley Rail Station (Amtrak station code) St Albans City railway station (National Rail station code) Sports activity coupe, a BMW class of cars Self-adjusting clutch in the BMW 5 Series Places United States Sac City, Iowa Sac County, Iowa Sac River, Missouri Nickname of Sacramento, California Other uses Sač, a baking vessel in the Balkans and the Middle East Ghost in the Shell: Stand Alone Complex (and GITS: SAC 2nd GIG), a Japanese TV series Sac language (ISO 639:sac) Sac (people), a North American tribe Sacrifice bunt, in baseball Slow air chamber, of a Native American flute Special Area of Conservation, in the EU and UK Summit Athletic Conference (IHSAA), Fort Wayne, Indiana, US SAC-46 (handgun), pistol, USA, 1945 See also Sack (disambiguation) Language and nationality disambiguation pages