- 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.
- 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.
