social welfare vs economic aid

social welfare and economic aid both are nouns.

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

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

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

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

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