travelling salesman vs bagman

travelling salesman and bagman both are nouns.

Word	Noun	Adjective	Verb	Adverb
travelling salesman	Yes	No	No	No
bagman	Yes	No	No	No

As nouns, travelling salesman and bagman are synonyms defined as:

travelling salesman and bagman: a salesman who travels to call on customers

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

travelling salesman (noun)	bagman (noun)
a salesman who travels to call on customers	a racketeer assigned to collect or distribute payoff money
	a salesman who travels to call on customers