horst vs crust

horst and crust both are nouns.

Word	Noun	Adjective	Verb	Adverb
horst	Yes	No	No	No
crust	Yes	No	Yes	No

As nouns, crust is a hypernym of horst; that is, crust is a word with a broader meaning than horst:

horst: a ridge of the earth's crust that has been forced upward between two faults and so is higher than the surrounding land
crust: the outer layer of the Earth

Other hypernyms of horst include Earth's crust.

horst (noun)	crust (noun)
a ridge of the earth's crust that has been forced upward between two faults and so is higher than the surrounding land	the trait of being rude and impertinent; inclined to take liberties
	the outer layer of the Earth
	a hard outer layer that covers something

horst (verb)	crust (verb)
	form a crust or form into a crust