/ Dictionary / Index A aux*: Meaning and Definition of Find definitions for: aux Pronunciation: (ō), [key] — French. French. pl. ofau. AUX Pronunciation: [key] — Ling. Ling. auxiliary verb: used to represent a phrase structure constituent that may include such verbal elements as tense and mood markers as well as auxiliaries. aux- Pronunciation: [key] var. ofesp. before a vowel: auxin. aux. Pronunciation: [key] auxiliary; auxiliaries. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. au vol Aux Cayes Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language