ST

Look up ST, St, st, or .st in Wiktionary, the free dictionary.

ST may refer to:

Arts and entertainment

• Stanza, in poetry
• Suicidal Tendencies, an American heavy metal/hardcore punk band

Businesses and organizations

Transportation

• Germania (airline) (IATA airline designator ST)
• Maharashtra State Road Transport Corporation, abbreviated as State Transport
• Sound Transit, Central Puget Sound Regional Transit Authority, Washington state, US
• Springfield Terminal Railway (Vermont) (railroad reporting mark ST)
• Suffolk County Transit, or Suffolk Transit, the bus system serving Suffolk County, New York

Other businesses and organizations

• Statstjänstemannaförbundet, or Swedish Union of Civil Servants, a trade union
• The Secret Team, an alleged covert alliance between the CIA and American industry
• STMicroelectronics, a worldwide manufacturer of semiconductors

Geography

• São Tomé and Príncipe (ISO 3166-1 country code ST)
  • .st, Internet country code top-level domain for São Tomé and Príncipe
• Split, Croatia (vehicle plate code ST)
• St or St., abbreviation of Street
• St or St., abbreviation of Strait

Language and typography

• Sesotho language (ISO 639-1 language code "st")
• ſt, or st, a typographic ligature
• Standard Theory in generative grammar

Science and technology

Computing

• ST connector, a type of optical fiber connector
• Atari ST, a personal computer
• Prefix of hard disk drives made by Seagate Technology, e.g. ST-506
• Internet Stream Protocol, an experimental Internet protocol

Mathematics

• Standard part function, a term used in non-standard analysis

Physics

• Stanton number St, used in physics
• Strouhal number St, used in fluid mechanics

Units of measurement

• Stokes (unit) (St), a CGS unit of kinematic viscosity
• Stone (weight) (st.), a unit of mass used in the British Isles and other countries

Other uses in science and technology

• ST segment, the part of an electrocardiogram connecting the QRS complex and the T wave

Other uses

• -st, a suffix for an ordinal number, such as 1^st or 21^st
• Saint (St or St.), especially in Christianity
• Scheduled Tribes, in India
• Ship prefix for a steam tug
• Sine tempore (s.t.), German term indicating that a lecture will begin at the exact time; see Academic quarter (class timing)