/ Dictionary / Index R rockfall: Meaning and Definition of Find definitions for: rock•fall Pronunciation: (rok'fôl"), [key] — n. an act or instance of the falling of rock, as in a cave-in or an avalanche. a mass of rocks that have fallen: to be trapped under a rockfall. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. rock-faced Rock Falls Related Content Daily Word Quiz: sequester Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language