/ Dictionary / Index F flagfish: Meaning and Definition of Find definitions for: flag•fish Pronunciation: (flag'fish"), [key] — pl. -fish, -fish•es. Also calleda killifish, Jordanella floridae, inhabiting swamps and streams of Florida, having a blue-brown back and whitish sides with red stripes, often kept in aquariums. any of several other brightly colored fishes. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: flagfish (Thesaurus) flageolet flag football Related Content Daily Word Quiz: feline Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language