passageway vs body structure

passageway and body structure both are nouns.

Word	Noun	Adjective	Verb	Adverb
passageway	Yes	No	No	No
body structure	Yes	No	No	No

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

passageway: a path or channel or duct through or along which something may pass
body structure: a particular complex anatomical part of a living thing and its construction and arrangement

Other hypernyms of passageway include anatomical structure, bodily structure, complex body part, structure.

passageway (noun)	body structure (noun)
a passage between rooms or between buildings	a particular complex anatomical part of a living thing and its construction and arrangement
a path or channel or duct through or along which something may pass