/ Dictionary / Index B barrier reef: Meaning and Definition of Find definitions for: bar'rier reef" Pronunciation: [key] a reef of coral running roughly parallel to the shore and separated from it by a wide, deep lagoon. Bar'rier Reef". Pronunciation: [key] See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. barrier island barring Related Content Daily Word Quiz: cetacean Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language