/ Dictionary / Index D duchy: Meaning and Definition of Find definitions for: duch•y Pronunciation: (duch'ē), [key] — pl. duch•ies. the territory ruled by a duke or duchess. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: duchy (Thesaurus) duchess potatoes duck Related Content Daily Word Quiz: feline Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language