chill vs get down

chill is a noun but get down is not a noun.

Word	Noun	Adjective	Verb	Adverb
chill	Yes	No	Yes	No
get down	No	No	Yes	No

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

Other hypernyms of chill include cast down, deject, demoralise, demoralize, depress, dismay, dispirit.

chill (noun)	get down (noun)
coldness due to a cold environment
a sudden numbing dread
an almost pleasurable sensation of fright
a sensation of cold that often marks the start of an infection and the development of a fever

chill (verb)	get down (verb)
loose heat	take the first step or steps in carrying out an action
make cool or cooler	put down in writing; of texts, musical compositions, etc.
depress or discourage	pass through the esophagus as part of eating or drinking
	lower someone's spirits; make downhearted
	move something or somebody to a lower position
	alight from (a horse)
	lower (one's body) as by kneeling