fireman vs stoker

fireman and stoker both are nouns.

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

As nouns, fireman and stoker are synonyms defined as:

fireman and stoker: a laborer who tends fires (as on a coal-fired train or steamship)

fireman (noun)	stoker (noun)
play in which children pretend to put out a fire	a mechanical device for stoking a furnace
a member of a fire department who tries to extinguish fires	a laborer who tends fires (as on a coal-fired train or steamship)
a laborer who tends fires (as on a coal-fired train or steamship)
a pitcher who does not start the game