bank vs cover

bank and cover both are nouns.

Word	Noun	Adjective	Verb	Adverb
bank	Yes	No	Yes	No
cover	Yes	No	Yes	No

As verbs, cover is a hypernym of bank; that is, cover is a word with a broader meaning than bank:

bank (noun)	cover (noun)
a flight maneuver; aircraft tips laterally about its longitudinal axis (especially in turning)	the act of concealing the existence of something by obstructing the view of it
a building in which the business of banking is transacted	fire that makes it difficult for the enemy to fire on your own individuals or formations
a container (usually with a slot in the top) for keeping money at home	a false identity and background (especially one created for an undercover agent)
a financial institution that accepts deposits and channels the money into lending activities	a recording of a song that was first recorded or made popular by somebody else
an arrangement of similar objects in a row or in tiers	bedding that keeps a person warm in bed
a long ridge or pile	a covering that serves to conceal or shelter something
sloping land (especially the slope beside a body of water)	covering for a hole (especially a hole in the top of a container)
a slope in the turn of a road or track; the outside is higher than the inside in order to reduce the effects of centrifugal force	the protective covering on the front, back, and spine of a book
a supply or stock held in reserve for future use (especially in emergencies)	a natural object that covers or envelops
the funds held by a gambling house or the dealer in some gambling games	a fixed charge by a restaurant or nightclub over and above the charge for food and drink

bank (verb)	cover (verb)
have faith or confidence in	sit on (eggs)
enclose with a bank	clothe, as if for protection from the elements
cover with ashes so to control the rate of burning	protect by insurance
tip laterally	act on verbally or in some form of artistic expression
put into a bank account	be responsible for reporting the details of, as in journalism
be in the banking business	maintain a check on; especially by patrolling
do business with a bank or keep an account at a bank	protect or defend (a position in a game)
act as the banker in a game or in gambling	hold within range of an aimed firearm
	play a higher card than the one previously played
	be responsible for guarding an opponent in a game
	provide with a covering or cause to be covered
	form a cover over
	copulate with a female, used especially of horses
	cover as if with a shroud
	put something on top of something else
	travel across or pass over
	hide from view or knowledge
	spread over a surface to conceal or protect
	be sufficient to meet, defray, or offset the charge or cost of
	to take an action to protect against future problems
	invest with a large or excessive amount of something
	help out by taking someone's place and temporarily assuming his responsibilities
	provide for
	span an interval of distance, space or time
	include in scope; include as part of something broader; have as one's sphere or territory
	make up for shortcomings or a feeling of inferiority by exaggerating good qualities