1 (also au.) astronomical unit.
2 aringngstroumlm unit.
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abbreviation1. often not capitalized [Latin ad usum] according to custom
2. angstrom unit
3. astronomical unit
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abbrev
1. African Union
2. Ångström unit (also ÅU, now usu Å)
3. Astronomical unit
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au «oh»,
French. to the; in the; with the. It is a contraction of à le, masculine form of à la, occurring in some phrases frequently used in English, as au courant, au revoir.
Au (no period),
A.U. or a.u.,
astronomical unit.
A.U., A.u., a.u., Å.U. Å.u., or å.u.,
angstrom unit.
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abbr.
■ ångström unit(s)
■ (also a.u.) astronomical unit(s)
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auobs. form of owe v.
Useful english dictionary. 2012.