/ Dictionary / Index R rooftop: Meaning and Definition of Find definitions for: roof•top Pronunciation: (rf'top", roof'-), [key] — n. the roof of a building, esp. the outer surface. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: rooftop (Thesaurus) roof rat rooftree Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language