oxeye vs dormer window

oxeye and dormer window both are nouns.

Word	Noun	Adjective	Verb	Adverb
oxeye	Yes	No	No	No
dormer window	Yes	No	No	No

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

oxeye: an oval or round dormer window
dormer window: the window in a gabled extension built to accommodate a window

oxeye (noun)	dormer window (noun)
an oval or round dormer window	a gabled extension built out from a sloping roof to accommodate a vertical window
Eurasian perennial herbs having daisylike flowers with yellow rays and dark centers	the window in a gabled extension built to accommodate a window
any North American shrubby perennial herb of the genus Heliopsis having large yellow daisylike flowers