Disk

n.	1.	A discus; a quoit. Some whirl the disk, and some the javelin dart. - Pope.
	2.	A flat, circular plate; as, a disk of metal or paper.
	3.	(Astron.) The circular figure of a celestial body, as seen projected of the heavens.
	4.	(Biol.) A circular structure either in plants or animals; as, a blood disk; germinal disk, etc.
	5.	(Bot.) The whole surface of a leaf.
	6.	(Zool.) The anterior surface or oral area of cœlenterate animals, as of sea anemones. Disk engine a form of rotary steam engine. Disk shell (Zool.) any species of Discina.

Noun	1.	disk - something with a round shape like a flat circular plate Synonyms: saucer, disc
	2.	disk - a flat circular plate Synonyms: disc
	3.	disk - sound recording consisting of a disc with continuous grooves; formerly used to reproduce music by rotating while a phonograph needle tracked in the grooves Synonyms: disc, phonograph record, phonograph recording, platter, record
	4.	disk - (computer science) a memory device consisting of a flat disk covered with a magnetic coating on which information is stored Synonyms: magnetic disc, magnetic disk, disc
Verb	1.	disk - draw a harrow over (land) Synonyms: harrow

(storage)

disk - 1. magnetic disk. 2. compact disc. 3. optical disk. Note: the american spelling, "disk", is normal for most computer disks whereas "compact disc", having come to computers via the audio world, is correctly spelled with a "c", indeed, this spelling is part of the CD standard.

Deutschsprachige Internationale SAS-benutzer KonferenzO, annular muscle, annulus, areola, aureole, carousel, chaplet, circle, circuit, circumference, circus, closed circle, coat, coating, collop, corona, coronet, covering, crown, cut, cycle, deal, diadem, discus, eternal return, fairy ring, feuille, film, flap, foil, fold, garland, glory, halo, lamella, lamina, laminated glass, laminated wood, lap, lasso, leaf, logical circle, loop, looplet, magic circle, membrane, merry-go-round, noose, orbit, pane, panel, patina, peel, pellicle, plait, plank, plate, plating, ply, plywood, radius, rasher, ring, roller, rolling stone, rondelle, rotator, rotor, round, roundabout, roundel, rundle, safety glass, saucer, scum, sheet, skin, slab, slat, slice, sphincter, table, tablet, top, veneer, vicious circle, wafer, wheel, whirlabout, whirler, whirligig, wreath