/ Dictionary / Index B black ruff: Meaning and Definition of Find definitions for: black' ruff' Pronunciation: [key] a large, blackish, pelagic fish, Centrolophus niger, of the Atlantic Ocean, chiefly along the coast of Europe. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. black rudderfish Black Russian Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language