/ Dictionary / Index A arioso: Meaning and Definition of Find definitions for: a•rio•so Pronunciation: (är"ē-ō'sō, ar"-It.ä-ryô'sô), [key] — adj., adv., n., pl. -sos. —adj., adv. in the manner of an air or melody. —n. an arioso composition or section. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: arioso (Thesaurus) ariose Ariosto Related Content Daily Word Quiz: abstain Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language