traveller vs travel

traveller and travel both are nouns.

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

traveller (noun)	travel (noun)
a person who changes location	the act of going from one place to another
	self-propelled movement
	a movement through space that changes the location of something

traveller (verb)	travel (verb)
	change location; move, travel, or proceed, also metaphorically
	make a trip for pleasure
	travel upon or across
	undergo transportation as in a vehicle
	undertake a journey or trip
	travel from place to place, as for the purpose of finding work, preaching, or acting as a judge