/ Dictionary / Index D dukedom: Meaning and Definition of Find definitions for: duke•dom Pronunciation: (dk'dum, dyk'-), [key] — n. a duchy. the office or rank of a duke. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: dukedom (Thesaurus) duke duked up Related Content Daily Word Quiz: reclusive Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language