- 1(informal) a person who flies an aircraft (usually a small one, not a passenger plane)
- 2 a person who travels in a plane as a passenger frequent fliers
- 3a person who operates something such as a model aircraft or a kite from the ground
- 4 a thing, especially a bird or an insect, that flies in a particular way Butterflies can be strong fliers.
- 5 a sheet of paper that advertises a product or an event and is given to a large number of people to hand out fliers for a new club