harpooneer vs trained worker

harpooneer and trained worker both are nouns.

Word	Noun	Adjective	Verb	Adverb
harpooneer	Yes	No	No	No
trained worker	Yes	No	No	No

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

Other hypernyms of harpooneer include skilled worker, skilled workman.

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