stoker vs labourer

stoker and labourer both are nouns.

Word	Noun	Adjective	Verb	Adverb
stoker	Yes	No	No	No
labourer	Yes	No	No	No

As nouns, labourer is a hypernym of stoker; that is, labourer is a word with a broader meaning than stoker:

stoker: a laborer who tends fires (as on a coal-fired train or steamship)
labourer: someone who works with their hands; someone engaged in manual labor

Other hypernyms of stoker include jack, laborer, manual laborer.

stoker (noun)	labourer (noun)
a mechanical device for stoking a furnace	someone who works with their hands; someone engaged in manual labor
a laborer who tends fires (as on a coal-fired train or steamship)