/ Dictionary / Index D deemster: Meaning and Definition of Find definitions for: deem•ster Pronunciation: (dēm'stur), [key] — n. a judge of the Isle of Man. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. de-emphasize de-energize Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language