get down vs deject

get down and deject both are verbs.

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

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

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

get down (verb)	deject (verb)
take the first step or steps in carrying out an action	lower someone's spirits; make downhearted
put down in writing; of texts, musical compositions, etc.
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