/ Dictionary / Index D decipher: Meaning and Definition of Find definitions for: de•ci•pher Pronunciation: (di-sī'fur), [key] — v.t. to make out the meaning of (poor or partially obliterated writing, etc.): to decipher a hastily scribbled note. to discover the meaning of (anything obscure or difficult to trace or understand): to decipher hieroglyphics. to interpret by the use of a key, as something written in cipher: to decipher a secret message. to depict; portray. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: decipher (Thesaurus) decinormal decision Related Content Daily Word Quiz: arid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language