roof peak vs peak

roof peak and peak both are nouns.

Word	Noun	Adjective	Verb	Adverb
roof peak	Yes	No	No	No
peak	Yes	No	Yes	No

As nouns, peak is a hypernym of roof peak; that is, peak is a word with a broader meaning than roof peak:

Other hypernyms of roof peak include acme, apex, vertex.

roof peak (noun)	peak (noun)
the highest point of a roof	a brim that projects to the front to shade the eyes
	the top or extreme point of something (usually a mountain or hill)
	the highest point (of something)
	the most extreme possible amount or value
	a V shape
	the highest level or degree attainable; the highest stage of development
	the period of greatest prosperity or productivity

roof peak (verb)	peak (verb)
	to reach the highest point; attain maximum intensity, activity