/ Dictionary / Index A acr-: Meaning and Definition of Find definitions for: acr- Pronunciation: [key] var. ofbefore a vowel: acronym. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. acquittance acraldehyde Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language