agingUS
elderlyA large number of elderly people live alone.
the elderlyMany among the elderly cannot afford to pay their electricity bills.
agedHe has to look after his aged aunt.
getting oninformalHe's getting on in years. He'll soon be eighty.
geriatricShe specializes in geriatric medicine.
over the hillinformalhumorousI'm only forty, you know. I'm not over the hill yet!