Definitions

1. noun

A cylindrical device on which thread, yarn, wire, or the like is wound

“The spool held the thin wire for the electrical connection”

2. noun

A roll of something, such as film or paper

“The camera had a spool of 35mm film”

3. verb

To wind something, especially thread or yarn, onto a spool

“Spool the yarn tightly around the wooden handle”