dock worker vs laborer

dock worker and laborer both are nouns.

Word	Noun	Adjective	Verb	Adverb
dock worker	Yes	No	No	No
laborer	Yes	No	No	No

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

dock worker: a laborer who loads and unloads vessels in a port
laborer: someone who works with their hands; someone engaged in manual labor

Other hypernyms of dock worker include jack, labourer, manual laborer.

dock worker (noun)	laborer (noun)
a laborer who loads and unloads vessels in a port	someone who works with their hands; someone engaged in manual labor