Toxic shock syndrome

Transcription Start Site in DNA

The Screen Savers, a now canceled television show on cable.

Trusted Software Stack - or TCG Software Stack

Task State Segment - a segment descriptor on the x86 architecture, defining a task for use in IA-32 hardware task switching

Tethered Satellite System

Total suspended solids

Thornhill Secondary School

TV Shinhiroshima

Thread-Specific Storage

Total sum of squares

Twin screw steamer, a steam vessel propelled by two screws, one on either side of the plane of the keel.

Temp Subscription Service, offered by CDMA opearators to give a 'disposable' MDN when its customers are roaming so that all calls to their home number are forwarded to the temp number. This is used primarily as a workaround to WLL licenses in India. (Telecom)

Temporal Single System, an approach in Marxian economics providing a solution to the transformation problem

Technical Services Staff, a component of the United States Central Intelligence Agency

The Southport School, an Anglican day and boarding school located on Gold Coast, Queensland, Australia