hobo vs bum

hobo and bum both are nouns.

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

As nouns, hobo and bum are synonyms defined as:

Other synonyms of hobo include tramp.

hobo (noun)	bum (noun)
a vagrant	the fleshy part of the human body that you sit on
a worker who moves around and works temporarily in different places	a vagrant
	a person who is deemed to be despicable or contemptible
	person who does no work

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

hobo (verb)	bum (verb)
	ask for and get free; be a parasite
	be lazy or idle