cultivator vs harrow

cultivator and harrow both are nouns.

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

As nouns, harrow is a hyponym of cultivator; that is, harrow is a word with a more specific, narrower meaning than cultivator:

cultivator: a farm implement used to break up the surface of the soil (for aeration and weed control and conservation of moisture)
harrow: a cultivator that pulverizes or smooths the soil

Other hyponyms of cultivator include extirpator, lister cultivator.

cultivator (noun)	harrow (noun)
a farm implement used to break up the surface of the soil (for aeration and weed control and conservation of moisture)	a cultivator that pulverizes or smooths the soil
someone concerned with the science or art or business of cultivating the soil

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