ship builder vs builder

ship builder and builder both are nouns.

Word	Noun	Adjective	Verb	Adverb
ship builder	Yes	No	No	No
builder	Yes	No	No	No

As nouns, builder is a hypernym of ship builder; that is, builder is a word with a broader meaning than ship builder:

ship builder: a person who builds ships as a business
builder: someone who contracts for and supervises construction (as of a building)

Other hypernyms of ship builder include constructor.

ship builder (noun)	builder (noun)
a person who builds ships as a business	someone who contracts for and supervises construction (as of a building)
a carpenter who helps build and launch wooden vessels	a person who creates a business or who organizes and develops a country
	a substance added to soaps or detergents to increase their cleansing action