AU
See also: Appendix:Variations of "au"
Translingual
Symbol
AU
- The ISO 3166-1 two-letter (alpha-2) code for Australia.
- astronomical unit
Usage notes
(astronomical unit): 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
(astronomical unit):
- au (the IAU recommended unit symbol for astronomical units)
- ua (the BIPM recommended unit symbol for astronomical units)
- ㍳ (Unicode glyph for astronomical unit)
Anagrams
English
Alternative forms
Noun
AU (plural AUs)
- (astronomy) Initialism of astronomical unit.
- Initialism of angstrom unit.
- (fandom slang) Initialism of alternate universe.
- Initialism of arbitrary unit.
Proper noun
AU
- Initialism of African Union.