dejection vs body waste

dejection and body waste both are nouns.

Word	Noun	Adjective	Verb	Adverb
dejection	Yes	No	No	No
body waste	Yes	No	No	No

As nouns, body waste is a hypernym of dejection; that is, body waste is a word with a broader meaning than dejection:

dejection: solid excretory product evacuated from the bowels
body waste: waste matter (as urine or sweat but especially feces) discharged from the body

Other hypernyms of dejection include excrement, excreta, excretion, excretory product.

dejection (noun)	body waste (noun)
a state of melancholy depression	waste matter (as urine or sweat but especially feces) discharged from the body
solid excretory product evacuated from the bowels