/ Dictionary / Index A acc.: Meaning and Definition of Find definitions for: acc. Pronunciation: [key] accelerate. acceleration. accept. acceptance. accompanied. accompaniment. accordant. according. account. accountant. accusative. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: acc (Thesaurus) acausal Accad Related Content Daily Word Quiz: nonchalant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language