social media vs favourite

social media and favourite both are nouns.

Word	Noun	Adjective	Verb	Adverb
social media	Yes	No	No	No
favourite	Yes	Yes	Yes	No

social media (noun)	favourite (noun)
Interactive forms of media that allow users to interact with and publish to each other, generally by means of the Internet	something regarded with special favor or liking
	a special loved one
	a competitor thought likely to win

social media (adjective)	favourite (adjective)
	preferred above all others and treated with partiality
	appealing to the general public

social media (verb)	favourite (verb)
	To mark an item as a personal favorite on social media