/ Dictionary / Index O outsole: Meaning and Definition of Find definitions for: out•sole Pronunciation: (out'sōl"), [key] — n. the outer sole of a shoe. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: outsole (Thesaurus) outsold outsource Related Content Daily Word Quiz: ingenuity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language