ship builder vs constructor

ship builder and constructor both are nouns.

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

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

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

Other hypernyms of ship builder include builder.

ship builder (noun)	constructor (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