Definitions from Wiktionary (AU)

▸ noun:  A vowel found in Indic abugidas.
▸ noun:  A language spoken in Sandaun Province, Papua New Guinea.
▸ noun:  A surname.
▸ noun:  Abbreviation of atomic unit.
▸ noun:  Abbreviation of arbitrary unit. [(sciences, technology) A relative unit of measurement to show the ratio of amount of substance, intensity, or other quantities, to a predetermined reference measurement.]
▸ noun:  Abbreviation of astronomical unit. [(astronomy) 149,597,870,700 metres, the approximate mean distance from the Earth to the Sun (the semi-major axis of Earth's orbit), (symbol AU), used to measure distances in the solar system.]
▸ noun:  Abbreviation of Absorbance Units.
▸ adjective:  (numismatics) Initialism of almost uncirculated.
▸ noun:  (medicine, dermatology) Initialism of alopecia universalis. [(medicine, dermatology) The most severe form of alopecia areata, involving the loss of hair from the entire body.]
▸ noun:  (astronomy, metrology) Initialism of astronomical unit. [(astronomy) 149,597,870,700 metres, the approximate mean distance from the Earth to the Sun (the semi-major axis of Earth's orbit), (symbol AU), used to measure distances in the solar system.]
▸ noun:  (physics, metrology) Initialism of angstrom unit.
▸ noun:  (fandom slang) Initialism of alternate universe.
▸ noun:  Initialism of arbitrary unit. [(sciences, technology) A relative unit of measurement to show the ratio of amount of substance, intensity, or other quantities, to a predetermined reference measurement.]
▸ noun:  Initialism of African Union. [A multinational organisation consisting of 54 African nations.]

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