glassworker vs craftsman

glassworker and craftsman both are nouns.

Word	Noun	Adjective	Verb	Adverb
glassworker	Yes	No	No	No
craftsman	Yes	No	No	No

As nouns, craftsman is a hypernym of glassworker; that is, craftsman is a word with a broader meaning than glassworker:

Other hypernyms of glassworker include artificer, artisan, journeyman.

glassworker (noun)	craftsman (noun)
someone who cuts flat glass to size	a skilled worker who practices some trade or handicraft
	a creator of great skill in the manual arts
	a professional whose work is consistently of high quality