harvest vs agriculture

harvest and agriculture both are nouns.

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

harvest (noun)	agriculture (noun)
the season for gathering crops	the practice of cultivating the land or raising stock
the gathering of a ripened crop	a large-scale farming enterprise
the consequence of an effort or activity	the class of people engaged in growing food
the yield from plants in a single growing season

harvest (verb)	agriculture (verb)
remove from a culture or a living or dead body, as for the purposes of transplantation
gather, as of natural products