AT

prep. in, on, near; indicating time or location; toward

designed for use against tanks or other armored vehicles

model of IBM PC introduced in 1984

AT may mean:AT Field, a force field in the anime Neon Genesis EvangelionAcceptance testAero triangulationAlimentary tractAllied TelesynAtmel CorporationAnaerobic thresholdAnálisis Transaccional (Spanish "Transactional analysis"), a psychological methodAnguilla, a World Meteorological Organization country codeAnti-tank weaponsCounter-terrorism, also known as "anti-terrorism" (AT)Appalachian TrailAphex TwinAppropriate TechnologyAshmore and Cartier Islands (FIPS 10-4 territory code and obsolete NATO country codeAssistive technologyIBM Personal Computer/ATAT form factor for motherboards and computer casesThe common name for the 5-pin DIN keyboard connectorAtaxia telangiectasia, an immunodeficiency disorderAtchison County, Kansas (county code)Attack Team (game), a 2000 computer gameAudit trailAustria's ISO, 2-letter country code.at is the Internet country code top-level domain for AustriaAuto TrendAutomatic transmissionAviation Electronics Technician (United States Navy ratings), an enlisted rating in the United States NavyHayes command set for computer modems (all commands begin with the characters "AT")Royal Air Maroc (IATA airline designator)Abel Tasman, a seventeenth century Dutch explorer and merchant
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.at is the Internet country code top-level domain (ccTLD) for Austria. It is administered by NIC.AT.The .at top-level domain has a number of second-level domains. These are:.gv.at - for governmental institutions.ac.at - for academic and educational institutions (registration is handled by the University of Vienna).co.at - intended for companies (unrestricted registration).or.at - intended for organizations (unrestricted registration)
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AT atrial tachycardia. At astatine. At The symbol for the element astatine. At chemical symbol, astatine. [more]At - Community and Resources

Noun
1. a highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium
(synonym) astatine, atomic number 85
(hypernym) chemical element, element

Noun
1. 100 at equal 1 kip
(hypernym) Laotian monetary unit
(part-holonym) kip

OT, Old Testament, first division of the Christian Bible; Jewish Bible (including the Law, the Prophets, and the Writings)

AT, astatine, rare radioactive element (Chemistry)