commercial traveler vs commercial traveller

commercial traveler and commercial traveller both are nouns.

Word	Noun	Adjective	Verb	Adverb
commercial traveler	Yes	No	No	No
commercial traveller	Yes	No	No	No

As nouns, commercial traveler and commercial traveller are synonyms defined as:

commercial traveler and commercial traveller: a salesman who travels to call on customers

Other synonyms of commercial traveler include bagman, roadman, traveling salesman, travelling salesman.

commercial traveler (noun)	commercial traveller (noun)
a salesman who travels to call on customers	a salesman who travels to call on customers