urban renewal vs renewal

urban renewal and renewal both are nouns.

Word	Noun	Adjective	Verb	Adverb
urban renewal	Yes	No	No	No
renewal	Yes	No	No	No

As nouns, renewal is a hypernym of urban renewal; that is, renewal is a word with a broader meaning than urban renewal:

urban renewal: the clearing and rebuilding and redevelopment of urban slums
renewal: the conversion of wasteland into land suitable for use of habitation or cultivation

Other hypernyms of urban renewal include reclamation, rehabilitation.

urban renewal (noun)	renewal (noun)
the clearing and rebuilding and redevelopment of urban slums	the conversion of wasteland into land suitable for use of habitation or cultivation
	the act of renewing
	filling again by supplying what has been used up