upholsterer vs artificer

upholsterer and artificer both are nouns.

Word	Noun	Adjective	Verb	Adverb
upholsterer	Yes	No	No	No
artificer	Yes	No	No	No

As nouns, artificer is a hypernym of upholsterer; that is, artificer is a word with a broader meaning than upholsterer:

Other hypernyms of upholsterer include artisan, craftsman, journeyman.

upholsterer (noun)	artificer (noun)
a craftsman who upholsters furniture	a skilled worker who practices some trade or handicraft
	someone who is the first to think of or make something
	an enlisted man responsible for the upkeep of small arms and machine guns etc.