shipbuilder vs builder

shipbuilder and builder both are nouns.

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

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

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

Other hypernyms of shipbuilder include constructor.

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