/ Dictionary / Index S subito: Meaning and Definition of Find definitions for: su•bi•to Pronunciation: (s'bi-tō"It.s'bē-tô), [key] — adv. (as a musical direction) suddenly; abruptly: subito pianissimo. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. subitize subj. Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language