Breadcrumb Home > Dictionary > Index B 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. Who's Who in the "Lord of the Rings" Roman Catholic Church Hierarchy Current Events This Week: March 2023 42 Top Western Movie Quotes Slaves in the Family User's Guide to Environmental Language ✖ Related Content Daily Word Quiz: wastrel Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language