what is stf

STF may refer to different things depending on the context. It could mean Spread Tow Fabric, a type of lightweight fabric, or Smooth Trans Focus, a technology in photographic lenses that produces a smooth focus effect. STF could also refer to She's the First, an organization that fights gender inequality, or the Songahm Taekwondo Federation, the South American branch of the American Taekwondo Association. In addition, STF could stand for Special Task Force, which is a police tactical unit in different countries such as South Africa, Sri Lanka, and India. Other meanings of STF include Short-time Fasting, a medical term, and System Transfer Function, a term used in engineering.