S4

From Wikipedia, the free encyclopedia

S4 or S-4 may refer to:

• Form S-4, a filing required by the Securities and Exchange Commission to declare Mergers and Acquisitions.[1]
• USS S-4 (SS-109), a US Navy submarine
• S4 (military), a logistics officer within military units.
• S4, a sustainability trends in fashion newsletter created by model Summer Rayne Oakes and found at S4trends.com
• the normal modal logic S4
• S4 algebra, a variety of modal algebras, also called Interior algebra
• S4 inc., Burlington, Massachusetts, top secret facility clearance mission-critical support services to customers like the Department of Homeland Security and U.S. Air Force [2]
• S4 safety phrase, see List of S-phrases
• S4 prediastolic Gallop rhythm, an abnormal heart sound often indicative of congestive heart failure or cor pulmonale
• Advanced Configuration and Power Interface (ACPI), S4 refers to hibernation, a sleeping state in which the contents of RAM are saved to a hard disk
• Audi S4
• SATA International (S4 IATA airline designator)
• Students for saving social security
• Version 4 of S (programming language)
• Fourth sacral vertebra of the vertebral column, in human anatomy
• S4 In model railways, a highly accurate 4mm/1 ft modelling format
• Sector Four An alleged military base next to Area 51, said to contain nine UFOs
• S4 (Munich) S-Bahn line in Munich
• S4 postcode, covering areas of northern Sheffield