/ Dictionary / Index U unchain: Meaning and Definition of Find definitions for: un•chain Pronunciation: (un-chān'), [key] — v.t. to free from or as if from chains; set free. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: unchain (Thesaurus) uncertificated share unchancy Related Content Daily Word Quiz: fidelity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language