旧城改造 jiùchénggǎizào urban renewal Origin Definitions Defs Strokes Stroke Words Sentences Sents 旧 舊 jiù adjective old old, used, or worn; second-hand; not new城 chéng noun city city; town; the area within city walls改造 gǎizào verb to transform To change, update, or rebuild something existing to make it suit new needs (e.g. land, urban districts, or machinery)