oriel window vs bow window

oriel window and bow window both are nouns.

Word	Noun	Adjective	Verb	Adverb
oriel window	Yes	No	No	No
bow window	Yes	No	No	No

As nouns, bow window is a hypernym of oriel window; that is, bow window is a word with a broader meaning than oriel window:

oriel window: a projecting bay window corbeled or cantilevered out from a wall
bow window: a window that sticks out from the outside wall of a house

Other hypernyms of oriel window include bay window.

oriel window (noun)	bow window (noun)
a projecting bay window corbeled or cantilevered out from a wall	a window that sticks out from the outside wall of a house