Breadcrumb Home > Thesaurus > B Synonyms of blackheart Find synonyms for: Noun 1. blackheart, plant disease usage: any of various diseases in which the central tissues blacken 2. blackheart, blackheart cherry, heart cherry, oxheart, oxheart cherry usage: heart cherry with dark flesh and skin cherry WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of blackheart (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 12 Steps to a New Year New Year's Resolution to Slim Down? Martin Luther King Speeches Books of the Bible: Old Testament Books in Order ✖ Related Content Daily Word Quiz: contretemps Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language