1. A piece of cloth, usually rectangular, of distinctive color and design, used as a symbol, a standard, a signal, or an emblem. 2. ships of the same flag. 3. A ship carrying the flag of an admiral; a flagship. 4. A marking device, such as a gummed strip of paper, attached to an object to attract attention or ease identification; a tab. 5. The masthead of a newspaper. 6. A cross stroke added to a note that is less than a quarter note in value. 7. A distinctively shaped or marked tail, as of a dog or deer. 8. A bit or series of bits with two stable states, used in software to indicate a single piece of information. 9. flag a parade route; flagging parts of a manuscript for later review. 10. To signal with or as if with a flag. 11. flag down a passing car.
