1. people who pilot aircraft or travel by air
2. printed advertisements or announcements distributed to the public
3. people or things that move through the air

Examples

• The airline hired experienced fliers as pilots.
• Many frequent fliers earn miles for free flights.
• Students distributed fliers advertising the school play.
• The store posted colorful fliers in the window.
• We handed out fliers for the charity event.
• The birds were graceful fliers in the evening sky.
• Paper fliers scattered in the wind.