/ Dictionary / Index E estop: Meaning and Definition of Find definitions for: es•top Pronunciation: (e-stop'), [key] — -topped, -top•ping. to hinder or prevent by estoppel. to stop. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Estonian esto perpetua* Related Content Daily Word Quiz: cetacean Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language