/ Dictionary / Index C Crystal Lake: Meaning and Definition of Find definitions for: Crys'tal Lake' Pronunciation: [key] a town in NE Illinois. 18,590. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. crystall- crystal lattice Related Content Daily Word Quiz: denizen Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language