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. April 2021 Current Events: US News The Berlin Conference and the Partition of Africa The Implied Powers of Congress Noble Titles and Ranks in a Monarchy Keeping Your Brain Active in a COVID-19 World Quetzalcoatl: Aztec Myths and Myths About the Aztecs Related Content Daily Word Quiz: erpsichore Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language