heighten vs get up

heighten and get up both are verbs.

Word	Noun	Adjective	Verb	Adverb
heighten	No	No	Yes	No
get up	No	No	Yes	No

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

Other hypernyms of heighten include bring up, elevate, lift, raise.

heighten (verb)	get up (verb)
increase the level of	get up and out of bed
become more extreme	cause to rise
make more extreme; raise in quantity, degree, or intensity	put on special clothes to appear particularly appealing and attractive
make more intense, stronger, or more marked	develop
make (one's senses) more acute	study intensively, as before an exam
increase the height of	arrange by systematic planning and united effort
	raise from a lower to a higher position
	rise to one's feet