plough vs agriculture

plough and agriculture both are nouns.

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

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

plough (verb)	agriculture (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