/ Dictionary / Index S Sugarloaf Mountain: Meaning and Definition of Find definitions for: Sug'arloaf Moun'tain Pronunciation: [key] a mountain in SE Brazil in Rio de Janeiro, at the entrance to Guanabara Bay. 1280 ft. (390 m). Portuguese, Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sugarloaf sugar maple Related Content Daily Word Quiz: cygnet Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language