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au

[ oh ]
/ oʊ /
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plural aux [oh]. /oʊ/. French.
to the; at the; with the.
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Other definitions for au (2 of 5)

Au1

abbreviation
author.Also au

Other definitions for au (3 of 5)

Au2

Symbol, Chemistry.
gold.

Origin of Au

2
From the Latin word aurum

Other definitions for au (4 of 5)

AU

abbreviation

Other definitions for au (5 of 5)

A.U.

or a.u.


abbreviation
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use au in a sentence

British Dictionary definitions for au (1 of 3)

au

the internet domain name for
Australia

British Dictionary definitions for au (2 of 3)

Au

the chemical symbol for
gold

Word Origin for Au

from New Latin aurum

British Dictionary definitions for au (3 of 3)

AU

abbreviation for
African Union
Also: a.u. angstrom unit
Also: a.u. astronomical unit
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for au (1 of 2)

Au

The symbol for the elementgold

Medical definitions for au (2 of 2)

AU

abbr.
auris utraque (each ear)
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for au (1 of 2)

Au

The symbol for gold.

Scientific definitions for au (2 of 2)

AU

Abbreviation of astronomical unit
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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