social welfare vs financial aid

social welfare and financial aid both are nouns.

Word	Noun	Adjective	Verb	Adverb
social welfare	Yes	No	No	No
financial aid	Yes	No	No	No

As nouns, financial aid is a hypernym of social welfare; that is, financial aid is a word with a broader meaning than social welfare:

social welfare: governmental provision of economic assistance to persons in need
financial aid: gift of money or other material help to support a person or cause

Other hypernyms of social welfare include aid, assistance, economic aid, economic assistance, financial assistance.

social welfare (noun)	financial aid (noun)
governmental provision of economic assistance to persons in need	gift of money or other material help to support a person or cause