swallow vs keep

swallow and keep both are nouns.

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

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

Other hypernyms of swallow include hold back, keep back, restrain.

swallow (noun)	keep (noun)
the act of swallowing	the main tower within the walls of a medieval castle or fortress
small long-winged songbird noted for swift graceful flight and the regularity of its migrations	a cell in a jail or prison
a small amount of liquid food	the financial means whereby one lives

swallow (verb)	keep (verb)
believe or accept without questioning or challenge	prevent (food) from rotting
keep from expressing	prevent the action or expression of
tolerate or accommodate oneself to	stick to correctly or closely
take back what one has said	maintain by writing regular records
utter unclearly	supply with necessities and support
engulf and destroy	hold and prevent from leaving
pass through the esophagus as part of eating or drinking	retain possession of
enclose or envelop completely, as if by swallowing	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