ship broker vs broker

ship broker and broker both are nouns.

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

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

ship broker: an agent for the ship owner; obtains cargo and may arrange for its loading or discharge
broker: a businessman who buys or sells for another in exchange for a commission

Other hypernyms of ship broker include agent, factor.

ship broker (noun)	broker (noun)
an agent for the ship owner; obtains cargo and may arrange for its loading or discharge	a businessman who buys or sells for another in exchange for a commission

ship broker (verb)	broker (verb)
	act as a broker