gather vs harvest

gather and harvest both are nouns.

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

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

Other hyponyms of gather include centralisation, centralization, harvest home, harvesting.

As verbs, harvest is a hyponym of gather; that is, harvest is a word with a more specific, narrower meaning than gather:

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

gather (verb)	harvest (verb)
increase in amount by collecting or gathering	remove from a culture or a living or dead body, as for the purposes of transplantation
increase or develop	gather, as of natural products
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