harpooneer vs skilled workman

harpooneer and skilled workman both are nouns.

Word	Noun	Adjective	Verb	Adverb
harpooneer	Yes	No	No	No
skilled workman	Yes	No	No	No

As nouns, skilled workman is a hypernym of harpooneer; that is, skilled workman is a word with a broader meaning than harpooneer:

Other hypernyms of harpooneer include skilled worker, trained worker.

harpooneer (noun)	skilled workman (noun)
someone who launches harpoons	a worker who has acquired special skills