/ Dictionary / Index R rock-bound: Meaning and Definition of Find definitions for: rock-bound Pronunciation: (rok'bound"), [key] — adj. hemmed in, enclosed, or covered by rocks; rocky: the rock-bound coast of Maine. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: rock-bound (Thesaurus) rock bottom rock candy Related Content Daily Word Quiz: furtive Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language