run down vs chase

run down is not a noun while chase is a noun.

Word	Noun	Adjective	Verb	Adverb
run down	No	No	Yes	No
chase	Yes	No	Yes	No

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

Other hypernyms of run down include chase after, dog, give chase, go after, tag, tail, track, trail.

run down (noun)	chase (noun)
	the act of pursuing in an effort to overtake or capture
	a rectangular metal frame used in letterpress printing to hold together the pages or columns of composed type that are printed at one time

run down (verb)	chase (verb)
use up all one's strength and energy and stop working	cut a groove into
injure or kill by knocking (someone or something) down and passing over the body, as with a vehicle	cut a furrow into a columns
pursue until captured	go after with the intent to catch
move downward	pursue someone sexually or romantically
examine hastily
deplete
trace