(Australia, New Zealand, British) The process of becoming older or more mature.
(Australia, New Zealand, British) The deliberate act of making something (such as an antique) appear older than it is.
(Australia, New Zealand, British, gerontology) Becoming senescent; accumulating damage to macromolecules, cells, tissues and organs with the passage of time.
Adjective
ageing
(Australia, New Zealand, British) Becoming elderly.The ageing artist could no longer steadily hold the brush.