/ Dictionary / Index U unlash: Meaning and Definition of Find definitions for: un•lash Pronunciation: (un-lash'), [key] — v.t. to loosen, unfasten, or detach, as something lashed or tied fast. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: unlash (Thesaurus) unlaid unlatch Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language