How to pronounce ageing:
To cause to grow old; to impart the characteristics of age to.
Example: "Grief ages us."
To postpone an action that would extinguish something, as a debt.
Example: "Money's a little tight right now, let's age our bills for a week or so."
To categorize by age.
Example: "One his first assignments was to age the accounts receivable."
To grow aged; to become old; to show marks of age.
Example: "He grew fat as he aged."
Becoming elderly.
Example: "The aging artist could no longer steadily hold the brush."