Breadcrumb Home > Dictionary > Index B Cite blue flag: Meaning and Definition of Find definitions for: blue' flag" Pronunciation: [key] any North American plant of the genus Iris, esp. I. versicolor: the state flower of Tennessee. Random House Unabridged Dictionary, Copyright 1997, by Random House, Inc., on Infoplease. bluefish blue flash TrendingHere are the facts and trivia that people are buzzing about. February 2021 Current Events: US News The Berlin Conference and the Partition of Africa The Implied Powers of Congress The Women's March on Versailles Keeping Your Brain Active in a COVID-19 World The Manchu Related Content Daily Word Quiz: internecine Analogy of the Day: Today?s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language