Look up stać in Wiktionary, the free dictionary.

STAC may refer to:

• stac (Set AC Flag) instruction on x86 CPUs, part of Supervisor Mode Access Prevention
• Stac Electronics, a former American technology company
  • Lempel–Ziv–Stac, a data compression algorithm developed by Stac Electronics
• SigmaTel Audio Codec
• an extended version of the Graphic Adventure Creator software
• SpatioTemporal Asset Catalog, an open specification to describe geospatial information.

• Southern Theatre Arts Centre, a training venue in Durrington by Sea, Worthing, West Sussex, England
• St. Thomas Aquinas College, Sparkill, New York
• Saint Thomas Aquinas College (Sogod), Southern Leyte, Philippines
• St Andrew's College, Christchurch, New Zealand

• Service des transports de l'agglomération chambérienne (Stac), a transport service in Chambéry, France; part of Compagnie générale française des transports et entreprises
• Service de transport adapté de la Capitale, a transport service in Quebec, Canada
• Special Transit Advisory Commission, a commission that founded the Triangle Transit transport service in North Carolina, United States
• STAC Swiss Government Flights, see List of airline codes (S)
• Supersonic Transport Aircraft Committee

• STAC (protein), a protein containing a C1 domain
• Sepak Takraw Association of Canada, a sport association
• Sirtuin-activating compound, a class of biochemical compounds
• Spatial and Temporal Analysis of Crime, see Crime hotspots
• Stac, the Gaelic word for a sea stack, commonly used in Scotland

• STACS
• All pages with titles beginning with Stac
• All pages with titles containing STAC

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