carry on vs keep

carry on is not a noun while keep is a noun.

Word	Noun	Adjective	Verb	Adverb
carry on	No	No	Yes	No
keep	Yes	No	Yes	No

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

Other hypernyms of carry on include hold, maintain.

carry on (noun)	keep (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

carry on (verb)	keep (verb)
continue talking	prevent (food) from rotting
direct the course of; manage or control	prevent the action or expression of
misbehave badly; act in a silly or improper way	stick to correctly or closely
keep or maintain in unaltered condition; cause to remain or last	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