keep vs put down

keep is a noun but put down is not a noun.

Word	Noun	Adjective	Verb	Adverb
keep	Yes	No	Yes	No
put down	No	No	Yes	No

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

Other hypernyms of keep include enter, record.

keep (noun)	put down (noun)
the main tower within the walls of a medieval castle or fortress
a cell in a jail or prison
the financial means whereby one lives

keep (verb)	put down (verb)
prevent (food) from rotting	put down in writing; of texts, musical compositions, etc.
prevent the action or expression of	make a record of; set down in permanent form
stick to correctly or closely	put in a horizontal position
maintain by writing regular records	remove (cargo, people, etc.) from and leave
supply with necessities and support	cause to sit or seat or be in a settled position or place
hold and prevent from leaving	put (an animal) to death
retain possession of	reduce in worth or character, usually verbally
look after; be the keeper of; have charge of	cause to come to the ground
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