/ Dictionary / Index C Cliffside Park: Meaning and Definition of Find definitions for: Cliff'side Park' Pronunciation: (klif'sīd"), [key] a city in NE New Jersey. 21,464. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Clifford trust cliff swallow Related Content Daily Word Quiz: drowsy Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language