/ Dictionary / Index A altoist: Meaning and Definition of Find definitions for: al•to•ist Pronunciation: (al'tō-ist), [key] — n. a performer on the alto saxophone. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: altoist (Thesaurus) alto horn Alton Related Content Daily Word Quiz: longevity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language