[{"Bold_text": "noun", "List Items": ["the process of becoming old or older:The aging of the population has had an effect on state revenues.", "the process of bringing a product, material, etc., to maturity or a state fit for use:the proper aging of cheese in controlled conditions of temperature and humidity.", "the process of making something seem older than it is:The leather tabletop is a recent replacement with deliberate aging and antiquing."]}, {"Bold_text": "adjective", "List Items": ["becoming old or older; showing signs of growing old:Many of us are caring for an aging parent in declining health.", "giving the appearance of being old or older:They used aging makeup on some of the actors instead of recasting the roles."]}]