public assistance vs social welfare

public assistance and social welfare both are nouns.

Word	Noun	Adjective	Verb	Adverb
public assistance	Yes	No	No	No
social welfare	Yes	No	No	No

As nouns, public assistance and social welfare are synonyms defined as:

public assistance and social welfare: governmental provision of economic assistance to persons in need

Other synonyms of public assistance include welfare.

public assistance (noun)	social welfare (noun)
governmental provision of economic assistance to persons in need	governmental provision of economic assistance to persons in need