harrow vs disk

harrow and disk both are nouns.

Word	Noun	Adjective	Verb	Adverb
harrow	Yes	No	Yes	No
disk	Yes	No	Yes	No

As verbs, harrow and disk are synonyms defined as:

harrow (noun)	disk (noun)
a cultivator that pulverizes or smooths the soil	a flat circular plate
	sound recording consisting of a disk with a continuous groove; used to reproduce music by rotating while a phonograph needle tracks in the groove
	(computer science) a memory device consisting of a flat disk covered with a magnetic coating on which information is stored
	something with a round shape resembling a flat circular plate

harrow (verb)	disk (verb)
draw a harrow over (land)	draw a harrow over (land)