mope vs bum

mope and bum both are nouns.

Word	Noun	Adjective	Verb	Adverb
mope	Yes	No	Yes	No
bum	Yes	Yes	Yes	No

As nouns, bum is a hypernym of mope; that is, bum is a word with a broader meaning than mope:

Other hypernyms of mope include do-nothing, idler, layabout, loafer.

mope (noun)	bum (noun)
someone who wastes time	the fleshy part of the human body that you sit on
	a vagrant
	a person who is deemed to be despicable or contemptible
	person who does no work

mope (adjective)	bum (adjective)
	of very poor quality; flimsy

mope (verb)	bum (verb)
be apathetic, gloomy, or dazed	ask for and get free; be a parasite
move around slowly and aimlessly	be lazy or idle