Cases of word usage

1) a sealed container for magnetic tape or for photographic film (cassette)

2) an instrument with a needle that points to the magnetic north (compass)

3) to give magnetic properties to (an object or substance); to attract (people) as a magnet attracts things (magnetize)

4) a kind of (music for a) lively Scottish dance; a long, round object on which cotton, thread, wire, photographic film, magnetic tape etc is wound (reel)

5) a round holder (for thread, wire, photographic film, magnetic tape etc) (spool)