minority vs social group

minority and social group both are nouns.

Word	Noun	Adjective	Verb	Adverb
minority	Yes	No	No	No
social group	Yes	No	No	No

As nouns, social group is a hypernym of minority; that is, social group is a word with a broader meaning than minority:

minority: a group of people who differ racially or politically from a larger group of which it is a part
social group: people sharing some social relation

minority (noun)	social group (noun)
being or relating to the smaller in number of two parts	people sharing some social relation
a group of people who differ racially or politically from a larger group of which it is a part
any age prior to the legal age