sponger vs workingman

sponger and workingman both are nouns.

Word	Noun	Adjective	Verb	Adverb
sponger	Yes	No	No	No
workingman	Yes	No	No	No

As nouns, workingman is a hypernym of sponger; that is, workingman is a word with a broader meaning than sponger:

Other hypernyms of sponger include working man, working person, workman.

sponger (noun)	workingman (noun)
a follower who hangs around a host (without benefit to the host) in hope of gain or advantage	an employee who performs manual or industrial labor
a workman employed to collect sponges