/ Dictionary / Index R rifle bird: Meaning and Definition of Find definitions for: ri'fle bird" Pronunciation: [key] any of several birds of paradise of Australia, having a long bill, dark plumage, and elaborate courtship displays. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: riflebird (Thesaurus) rifle rifled slug Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language