corn vs keep

corn and keep both are nouns.

Word	Noun	Adjective	Verb	Adverb
corn	Yes	No	Yes	No
keep	Yes	No	Yes	No

As verbs, keep is a hypernym of corn; that is, keep is a word with a broader meaning than corn:

Other hypernyms of corn include preserve.

corn (noun)	keep (noun)
something sentimental or trite	the main tower within the walls of a medieval castle or fortress
ears of corn that can be prepared and served for human food	a cell in a jail or prison
whiskey distilled from a mash of not less than 80 percent corn	the financial means whereby one lives
tall annual cereal grass bearing kernels on large ears: widely cultivated in America in many varieties; the principal cereal in Mexico and Central and South America since pre-Columbian times
(Great Britain) any of various cereal plants (especially the dominant crop of the region--wheat in Great Britain or oats in Scotland and Ireland)
the dried grains or kernels or corn used as animal feed or ground for meal
a hard thickening of the skin (especially on the top or sides of the toes) caused by the pressure of ill-fitting shoes

corn (verb)	keep (verb)
preserve with large-grained rock salt	prevent (food) from rotting
feed (cattle) with corn	prevent the action or expression of
	stick to correctly or closely
	maintain by writing regular records
	supply with necessities and support
	hold and prevent from leaving
	retain possession of
	look after; be the keeper of; have charge of
	retain rights to
	maintain for use and service
	have as a supply
	store or keep customarily
	stop (someone or something) from doing something or being in a certain state
	allow to remain in a place or position or maintain a property or feature
	conform one's action or practice to
	behave as expected during of holidays or rites
	cause to continue in a certain state, position, or activity
	supply with room and board
	maintain in safety from injury, harm, or danger
	fail to spoil or rot
	continue a certain state, condition, or activity
	to rear