/ Dictionary / Index S Saco: Meaning and Definition of Find definitions for: Sa•co Pronunciation: (sô'kō), [key] — n. a city in SW Maine. 12,921. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Sackville-West sacque Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language