agriculture vs plough

agriculture and plough both are nouns.

Word	Noun	Adjective	Verb	Adverb
agriculture	Yes	No	No	No
plough	Yes	No	Yes	No

agriculture (noun)	plough (noun)
the practice of cultivating the land or raising stock	a farm tool having one or more heavy blades to break the soil and cut a furrow prior to sowing
a large-scale farming enterprise
the class of people engaged in growing food

agriculture (verb)	plough (verb)
	to break and turn over earth especially with a plow
	move in a way resembling that of a plow cutting into or going through the soil