/ Dictionary / Index A attacca: Meaning and Definition of Find definitions for: at•tac•ca Pronunciation: (u-tä'ku, u-tak'uIt.ät-täk'kä), [key] — v. Music. begin immediately (directing a performer to go without pause to the next section). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. attaboy attach Related Content Daily Word Quiz: eureka Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language