/ Dictionary / Index D debase: Meaning and Definition of Find definitions for: de•base Pronunciation: (di-bās'), [key] — -based, -bas•ing. to reduce in quality or value; adulterate: They debased the value of the dollar. to lower in rank, dignity, or significance: He wouldn't debase himself by doing manual labor. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: debase (Thesaurus) debark debatable Related Content Daily Word Quiz: digression Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language