backpacker vs tramp

backpacker and tramp both are nouns.

Word	Noun	Adjective	Verb	Adverb
backpacker	Yes	No	No	No
tramp	Yes	No	Yes	No

As nouns, tramp is a hypernym of backpacker; that is, tramp is a word with a broader meaning than backpacker:

Other hypernyms of backpacker include hiker, tramper.

backpacker (noun)	tramp (noun)
a hiker who wears a backpack	a long walk usually for exercise or pleasure
	a commercial steamer for hire; one having no regular schedule
	a heavy footfall
	a vagrant
	a person who engages freely in promiscuous sex
	a foot traveler; someone who goes on an extended walk (for pleasure)

backpacker (verb)	tramp (verb)
	travel on foot, especially on a walking expedition
	walk heavily and firmly, as when weary, or through mud
	move about aimlessly or without any destination, often in search of food or employment
	cross on foot