rider vs traveller

rider and traveller both are nouns.

Word	Noun	Adjective	Verb	Adverb
rider	Yes	No	No	No
traveller	Yes	No	No	No

As nouns, traveller is a hypernym of rider; that is, traveller is a word with a broader meaning than rider:

Other hypernyms of rider include traveler.

As nouns, traveller is a hypernym of rider; that is, traveller is a word with a broader meaning than rider:

rider: a traveler riding in a vehicle (a boat or bus or car or plane or train etc) who is not operating it
traveller: a person who changes location

Other hypernyms of rider include traveler.

As nouns, traveller is a hypernym of rider; that is, traveller is a word with a broader meaning than rider:

Other hypernyms of rider include traveler.

rider (noun)	traveller (noun)
a clause that is appended to a legislative bill	a person who changes location
a traveler who actively rides an animal (as a horse or camel)
a traveler riding in a vehicle (a boat or bus or car or plane or train etc) who is not operating it
a traveler who actively rides a vehicle (as a bicycle or motorcycle)