peak vs roof peak

peak and roof peak both are nouns.

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

As nouns, roof peak is a hyponym of peak; that is, roof peak is a word with a more specific, narrower meaning than peak:

Other hyponyms of peak include crown.

peak (noun)	roof peak (noun)
a brim that projects to the front to shade the eyes	the highest point of a roof
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

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