/ Dictionary / Index I insole: Meaning and Definition of Find definitions for: in•sole Pronunciation: (in'sōl"), [key] — n. the inner sole of a shoe or boot. a thickness of material laid as an inner sole within a shoe, esp. for comfort. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: insole (Thesaurus) insolation insolence Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language