harvest vs gather

harvest and gather both are nouns.

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

As nouns, gather is a hypernym of harvest; that is, gather is a word with a broader meaning than harvest:

Other hypernyms of harvest include gathering.

As verbs, gather is a hypernym of harvest; that is, gather is a word with a broader meaning than harvest:

Other hypernyms of harvest include collect, garner, pull together.

harvest (noun)	gather (noun)
the season for gathering crops	the act of gathering something
the gathering of a ripened crop	sewing consisting of small folds or puckers made by pulling tight a thread in a line of stitching
the consequence of an effort or activity
the yield from plants in a single growing season

harvest (verb)	gather (verb)
remove from a culture or a living or dead body, as for the purposes of transplantation	increase in amount by collecting or gathering
gather, as of natural products	increase or develop
	conclude from evidence
	assemble or get together
	draw together into folds or puckers
	look for (food) in nature
	draw and bring closer
	collect in one place
	get people together