drifter vs beachcomber

drifter and beachcomber both are nouns.

Word	Noun	Adjective	Verb	Adverb
drifter	Yes	No	No	No
beachcomber	Yes	No	No	No

As nouns, beachcomber is a hyponym of drifter; that is, beachcomber is a word with a more specific, narrower meaning than drifter:

drifter: a wanderer who has no established residence or visible means of support
beachcomber: a vagrant living on a beach

Other hyponyms of drifter include sundowner, bum, hobo, tramp.

drifter (noun)	beachcomber (noun)
a wanderer who has no established residence or visible means of support	a vagrant living on a beach