Hello, you have come here looking for the meaning of the word
AU. In DICTIOUS you will not only get to know all the dictionary meanings for the word
AU, but we will also tell you about its etymology, its characteristics and you will know how to say
AU in singular and plural. Everything you need to know about the word
AU you have here. The definition of the word
AU will help you to be more precise and correct when speaking or writing your texts. Knowing the definition of
AU, as well as those of other words, enriches your vocabulary and provides you with more and better linguistic resources.
Translingual
Etymology 1
Symbol
AU
- (international standards) ISO 3166-1 alpha-2 country code for Australia.
- Synonym: AUS (alpha-3)
Usage notes
The code includes the Ashmore and Cartier Islands and the Coral Sea Islands.
Etymology 2
Symbol
AU
- astronomical unit
Usage notes
Though "AU" is in frequent use by professional bodies and the public, the unit symbol au is recommended by the IAU and ua by the BIPM.
Synonyms
- au (IAU recommended unit symbol for astronomical units)
- ua (BIPM recommended unit symbol for astronomical units)
- ㍳ (Unicode glyph for astronomical unit)
Anagrams
English
Alternative forms
Adjective
AU (not comparable)
- (numismatics) Initialism of almost uncirculated.
Translations
Noun
AU (countable and uncountable, plural AUs)
- (medicine, dermatology) Initialism of alopecia universalis.
- (astronomy) Initialism of astronomical unit.
2008, BioWare, Mass Effect, Redwood City: Electronic Arts, →ISBN, →OCLC, PC, scene: Tuntau:Tuntau is an enormous, low-density terrestrial planet, with a thick atmosphere of methane and helium. Despite being nearly 20 AU from Phoenix, the star's great heat and the insulating thickness of the atmosphere make the surface surprisingly temperate.
- Initialism of angstrom unit.
- (fandom slang) Initialism of alternate universe.
- Initialism of arbitrary unit.
Proper noun
AU
- Initialism of African Union.
Anagrams