galvanizer vs skilled workman

galvanizer and skilled workman both are nouns.

Word	Noun	Adjective	Verb	Adverb
galvanizer	Yes	No	No	No
skilled workman	Yes	No	No	No

As nouns, skilled workman is a hypernym of galvanizer; that is, skilled workman is a word with a broader meaning than galvanizer:

Other hypernyms of galvanizer include skilled worker, trained worker.

galvanizer (noun)	skilled workman (noun)
a leader who stimulates and excites people to action	a worker who has acquired special skills
a skilled worker who coats iron or steel with zinc