gangway vs passageway

gangway and passageway both are nouns.

Word	Noun	Adjective	Verb	Adverb
gangway	Yes	No	No	No
passageway	Yes	No	No	No

As nouns, passageway is a hypernym of gangway; that is, passageway is a word with a broader meaning than gangway:

As nouns, passageway is a hypernym of gangway; that is, passageway is a word with a broader meaning than gangway:

gangway: passageway between seating areas as in an auditorium or passenger vehicle or between areas of shelves of goods as in stores
passageway: a passage between rooms or between buildings

gangway (noun)	passageway (noun)
a temporary passageway of planks (as over mud on a building site)	a passage between rooms or between buildings
a temporary bridge for getting on and off a vessel at dockside	a path or channel or duct through or along which something may pass
passageway between seating areas as in an auditorium or passenger vehicle or between areas of shelves of goods as in stores