sunroof vs sunshine-roof

sunroof and sunshine-roof both are nouns.

Word	Noun	Adjective	Verb	Adverb
sunroof	Yes	No	No	No
sunshine-roof	Yes	No	No	No

As nouns, sunroof and sunshine-roof are synonyms defined as:

sunroof and sunshine-roof: an automobile roof having a sliding or raisable panel

sunroof (noun)	sunshine-roof (noun)
an automobile roof having a sliding or raisable panel	an automobile roof having a sliding or raisable panel