/ Dictionary / Index I instep: Meaning and Definition of Find definitions for: in•step Pronunciation: (in'step"), [key] — n. the arched upper surface of the human foot between the toes and the ankle. the part of a shoe, stocking, etc., covering this surface. the front of the hind leg of a horse, cow, etc., between the hock and the pastern joint; cannon. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: instep (Thesaurus) instead instigate Related Content Daily Word Quiz: sequester Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language