/ Dictionary / Index C cat-and-dog: Meaning and Definition of Find definitions for: cat-and-dog Pronunciation: (kat'n-dôg', -dog'), [key] — adj. continuously or unceasingly vicious and destructive: cat-and-dog competition. (of a security) highly speculative and of questionable value. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. catamountain cat and mouse Related Content Daily Word Quiz: abstain Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language