/ Dictionary / Index R ruckus: Meaning and Definition of Find definitions for: ruck•us Pronunciation: (ruk'us), [key] — n. a noisy commotion; fracas; rumpus: The losers are sure to raise a ruckus. a heated controversy: Newspapers fostered the ruckus by printing the opponents' letters. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: ruckus (Thesaurus) rucksack ruction Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language