definition: growing old
example: You are aging well.
speech part: adjective
synonyms: senescent
definition: the organic process of growing older and showing the effects of increasing age
example: Aging has its ups and downs.
speech part: noun
synonyms: senescence
definition: acquiring desirable qualities by being left undisturbed for some time
example: The wine's aging is excellent.
speech part: noun
synonyms: ripening

ageing is explained and pronounced

How ageing is being used?