keep up vs continue

keep up and continue both are verbs.

Word	Noun	Adjective	Verb	Adverb
keep up	No	No	Yes	No
continue	No	No	Yes	No

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

Other hypernyms of keep up include bear on, carry on, preserve, uphold.

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

keep up: lengthen or extend in duration or space
continue: allow to remain in a place or position or maintain a property or feature

Other hyponyms of keep up include keep, keep on, retain.

keep up (verb)	continue (verb)
prevent from going to bed at night	exist over a prolonged period of time
keep informed	continue talking
maintain a required pace or level	move ahead; travel onward in time or space
keep in safety and protect from harm, decay, loss, or destruction	allow to remain in a place or position or maintain a property or feature
lengthen or extend in duration or space	keep or maintain in unaltered condition; cause to remain or last
	continue a certain state, condition, or activity
	span an interval of distance, space or time
	continue in a place, position, or situation
	continue after an interruption
	do something repeatedly and showing no intention to stop