get down vs depress

get down and depress both are verbs.

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

As verbs, get down and depress are synonyms defined as:

Other synonyms of get down include cast down, deject, demoralise, demoralize, dismay, dispirit.

As verbs, depress is a hyponym of get down; that is, depress is a word with a more specific, narrower meaning than get down:

Other hyponyms of get down include reef, dip, incline.

get down (verb)	depress (verb)
take the first step or steps in carrying out an action	lessen the activity or force of
put down in writing; of texts, musical compositions, etc.	press down
pass through the esophagus as part of eating or drinking	cause to drop or sink
lower someone's spirits; make downhearted	lower someone's spirits; make downhearted
move something or somebody to a lower position	lower (prices or markets)
alight from (a horse)
lower (one's body) as by kneeling