Disk

A disc or disk generally refers to a round flat object, although the usage varies between different variants of English. Common types of disc include:

 Flying disc or, more specifically, a Frisbee, a disk-shaped toy
 Intervertebral disc, between the bones in the spines of vertebrates
 Parking disc, or parking disc machine
 Tax disc, a vehicle licence

Audio and video recording media
 transcription disc (gramophone record or "phonograph record" in U.S. English)
 Optical disc, the most common of which are:
 Compact Disc
 Digital Versatile Disc or Digital Video Disc (DVD)
 Blu-ray Disc
 HD DVD

Magnetic recording media
 Hard disk, also known as a hard drive
 Floppy disk, or diskette
 RAM disk
 Laserdisc
 MiniDisc
 Also (perhaps erroneously) to refer to tape drives and flash memory cards for both music and computer data

Science
 Accretion disk, in astrophysics
 Protoplanetary disk
 Debris Disk
 Scattered disc
 Disc (galaxy)

Acronyms
 The DISC assessment (or personal profile system), a psychological test
 DISCs  - Domestic International Sales Corporations in US law
 Death Inducing Signaling Complex
 DİSK, the Confederation of Revolutionary Trade Unions of Turkey

Related pages
 Discus throw
 Disco
 Disc jockey
 Disc brake, a type of brake