AU

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Translingual[edit]

Symbol[edit]

AU

  1. The ISO 3166-1 two-letter (alpha-2) code for Australia.
  2. astronomical unit

Usage notes[edit]

(astronomical unit): Though "AU" is in frequent use by professional bodies and the public, the recommended unit symbol is au by the IAU and ua by the BIPM.

Synonyms[edit]

(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)

English[edit]

Noun[edit]

AU (plural AUs)

  1. (astronomy) Initialism of astronomical unit.
  2. Initialism of angstrom unit.
  3. (fandom slang) Initialism of alternate universe.

Proper noun[edit]

AU

  1. Initialism of African Union.

Anagrams[edit]