or Aux

  1. auxiliary verb: used to represent a phrase structure constituent that may include such verbal elements as tense and mood markers as well as auxiliaries.


plural aux [oh] /oʊ/. French.
  1. to the; at the; with the.
Compare à la.


or aux, auxil

  1. auxiliary; auxiliaries.


  1. variant of auxo-, especially before a vowel: auxin. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for aux

Historical Examples of aux

  • We might have him boiled in the March aux Pourceaux, before he would say anything.

  • At each return of the thrilling invocation, “Aux armes, citoyens!”

  • The Bishop was met at Pointe aux Trembles by the reception committee.

  • It was the same at Abbaye aux Bois, the convent where I was taught.

    The Crossing

    Winston Churchill

  • I wish I could have seen you aux prises with her, Oldmeadow remarked.

    Adrienne Toner

    Anne Douglas Sedgwick

British Dictionary definitions for aux


the internet domain name for
  1. Australia


the chemical symbol for
  1. gold

Word Origin for Au

from New Latin aurum


abbreviation for
  1. African Union
  2. Also: a.u. angstrom unit
  3. 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

Word Origin and History for aux


chemical symbol for "gold," from Latin aurum "gold" (see aureate).


French, "at the, to the," from Old French al, contraction of a le, with -l- softened to -u-, as also poudre from pulverem, chaud from calidus, etc. Used in many expressions in cookery, etc., which have crossed the Channel since 18c., e.g. au contraire, literally "on the contrary;" au gratin, literally "with scrapings;" au jus, literally "with the juice."

Online Etymology Dictionary, © 2010 Douglas Harper

aux in Medicine


  1. The symbol for the elementgold


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

aux in Science


  1. The symbol for gold.


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