roundsman vs working person

roundsman and working person both are nouns.

Word	Noun	Adjective	Verb	Adverb
roundsman	Yes	No	No	No
working person	Yes	No	No	No

As nouns, working person is a hypernym of roundsman; that is, working person is a word with a broader meaning than roundsman:

roundsman: a workman employed to make rounds (to deliver goods or make inspections or so on)
working person: an employee who performs manual or industrial labor

Other hypernyms of roundsman include working man, workingman, workman.

roundsman (noun)	working person (noun)
a workman employed to make rounds (to deliver goods or make inspections or so on)	an employee who performs manual or industrial labor