/ Dictionary / Index A att.: Meaning and Definition of Find definitions for: att. Pronunciation: [key] attached. attention. attorney. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ATS attaboy Related Content Daily Word Quiz: resilient Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language