n. 1. A device, such as a cylinder, spool, or frame, that turns on an axis and is used for winding and storing rope, tape, film, or other flexible materials.
2. A cylindrical device attached to a fishing rod to let out or wind up the line.
3. The quantity of wire, film, or other material wound on one reel.
4. A set of curved lawnmower blades that rotate around a bar parallel to the ground, cutting grass while moving against a stationary straight blade.