/ Dictionary / Index D Dog Star: Meaning and Definition of Find definitions for: Dog' Star" Pronunciation: [key] the bright star Sirius, in Canis Major. the bright star Procyon, in Canis Minor. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. dog's letter dog tag Related Content Daily Word Quiz: supine Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language