The whole duration of a being, whether animal, plant, or other kind, being alive.

The number of full years, months, days, hours, etc., that someone, or something, has been alive.

One of the stages of life.

"the age of infancy"

The time of life at which some particular power or capacity is understood to become vested.

"the age of consent; the age of discretion"

A particular period of time in history, as distinguished from others.

"the golden age; the age of Pericles"

A great period in the history of the Earth.

"the Bronze Age was followed by the Iron Age; the Tithonian Age was the last in the Late Jurassic epoch"

A period of one hundred years; a century.

The people who live during a particular period.

A generation.

"There are three ages living in her house."

A long time.

"It’s been an age since we last saw you."

A unit of geologic time subdividing an epoch into smaller parts.

The right of the player to the left of the dealer to pass the first round in betting, and then to come in last or stay out; also, the player holding this position; the eldest hand.

That part of the duration of a being or a thing which is between its beginning and any given time; specifically the size of that part.

"What is the present age of a man, or of the earth?"

Mature age; especially, the time of life at which one attains full personal rights and capacities.

"to come of age; she is now of age"

An advanced period of life; the latter part of life; the state of being old; eld, seniority.

"Wisdom doesn't necessarily come with age, sometimes age just shows up all by itself."

To cause to grow old; to impart the characteristics of age to.

"Grief ages us."

To postpone an action that would extinguish something, as a debt.

"Money's a little tight right now, let's age our bills for a week or so."

To categorize by age.

"One his first assignments was to age the accounts receivable."

To grow aged; to become old; to show marks of age.

"He grew fat as he aged."

A long time.