age

(noun): The whole duration of a being, whether animal, plant, or other kind, being alive.
(noun): The number of full years, months, days, hours, etc., that someone, or something, has been alive.
(noun): One of the stages of life.
(noun): The time of life at which some particular power or capacity is understood to become vested.
(noun): A particular period of time in history, as distinguished from others.
(noun): A great period in the history of the Earth.
(noun): A period of one hundred years; a century.
(noun): The people who live during a particular period.
(noun): A generation.
(noun): A long time.
(noun): A unit of geologic time subdividing an epoch into smaller parts.
(noun): 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.
(noun): 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.
(noun): Mature age; especially, the time of life at which one attains full personal rights and capacities.
(noun): An advanced period of life; the latter part of life; the state of being old; eld, seniority.
(verb): To cause to grow old; to impart the characteristics of age to.
(verb): To postpone an action that would extinguish something, as a debt.
(verb): To categorize by age.
(verb): To grow aged; to become old; to show marks of age.

the age of infancy
the age of consent; the age of discretion
the golden age; the age of Pericles
the Bronze Age was followed by the Iron Age; the Tithonian Age was the last in the Late Jurassic epoch
There are three ages living in her house.