Au, AU or au may refer to:
Australia (/əˈstreɪliə/, /ɒ-/, /-ljə/), officially the Commonwealth of Australia, is a country comprising the mainland of the Australian continent, the island of Tasmania and numerous smaller islands.
Automation or automatic control, is the use of various control systems for operating equipment such as machinery, processes in factories, boilers and heat treating ovens, switching on telephone networks, steering and stabilization of ships, aircraft and other applications and vehicles with minimal or reduced human intervention.
Austria (/ˈɒstriə, ˈɔː-/; German: Österreich [ˈøːstɐˌʁaɪç]), officially the Republic of Austria (German: Republik Österreich, listen ), is a federal republic and a landlocked country of over 8.7 million people in Central Europe.
Autism is a neurodevelopmental disorder characterized by impaired social interaction, verbal and non-verbal communication, and restricted and repetitive behavior.
Austin (/ˈɒstᵻn, ˈɔː-/) is the capital of the U.S. state of Texas and the seat of Travis County. It is the 11th-most populous city in the U.S.
Auschwitz concentration camp (German: Konzentrationslager Auschwitz, pronounced [kɔntsɛntʁaˈtsi̯oːnsˌlaːɡɐ ˈʔaʊʃvɪts], also KZ and KL Auschwitz) was a network of German Nazi concentration camps and extermination camps built and operated by the Third Reich in Polish areas annexed by Nazi Germany during World War II.
Austria-Hungary, often referred to as the Austro-Hungarian Empire in English-language sources, was a constitutional union of the Austrian Empire (the Kingdoms and Lands Represented in the Imperial Council, or Cisleithania) and the Kingdom of Hungary (Lands of the Crown of Saint Stephen or Transleithania) that existed from 1867 to 1918, when it collapsed as a result of defeat in World War I.
Augustus (Latin: Imperātor Caesar Dīvī Fīlius Augustus; 23 September 63 BC – 19 August 14 AD) was the founder of the Roman Principate and considered the first Roman emperor, controlling the Roman Empire from 27 BC until his death in AD 14.
Autism spectrum or autism spectrum disorder describes a range of conditions classified as neurodevelopmental disorders in the DSM-5, published in 2013. Individuals diagnosed with autism spectrum disorder (ASD) must present two types of symptoms: