keep vs refuse

keep and refuse both are nouns.

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

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

keep (noun)	refuse (noun)
the main tower within the walls of a medieval castle or fortress	food that is discarded (as from a kitchen)
a cell in a jail or prison
the financial means whereby one lives

keep (verb)	refuse (verb)
prevent (food) from rotting	show unwillingness towards
prevent the action or expression of	not accept as true
stick to correctly or closely	refuse to let have
maintain by writing regular records	refuse entrance or membership
supply with necessities and support	elude, especially in a baffling way
hold and prevent from leaving	resist immunologically the introduction of some foreign tissue or organ
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