age

To grow older or develop characteristics associated with increasing years.

"Fine wine ages beautifully in a cellar."

To cause something to mature or develop characteristics of age.

"Stress can age a person prematurely."

The duration of existence from birth or creation to a given time.

"What is the legal drinking age in the UK?"

The state of being old; the later period of human life.

"She's showing signs of her age."

A distinct historical period or stage in a person's life.

"We are living in the digital age now."