Definition of: flier

(flī′ər) noun
1. That which flies; a flying bird, airplane, or the like; a fugitive.
2. An aviator or airman.
3. A rapidly moving piece in a machine.
4. U.S. A printed handbill.
5. A single step in a straight flight of stairs; in the plural, a straight flight.
6. A bus or express train with a fast schedule.
7. Colloq. A venture, as in the stock market. Also spelled flyer.