commercial traveler vs roadman

commercial traveler and roadman both are nouns.

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

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

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

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

commercial traveler (noun)	roadman (noun)
a salesman who travels to call on customers	a salesman who travels to call on customers
	a workman who is employed to repair roads