1. (n.) The whole duration of a being, whether animal, vegetable, or other kind; lifetime.

2. (n.) That part of the duration of a being or a thing which is between its beginning and any given time; as, what is the present age of a man, or of the earth?

3. (n.) The latter part of life; an advanced period of life; seniority; state of being old.

4. (n.) One of the stages of life; as, the age of infancy, of youth, etc.

5. (n.) Mature age; especially, the time of life at which one attains full personal rights and capacities; as, to come of age; he (or she) is of age.

6. (n.) The time of life at which some particular power or capacity is understood to become vested; as, the age of consent; the age of discretion.

7. (n.) A particular period of time in history, as distinguished from others; as, the golden age, the age of Pericles.

8. (n.) A great period in the history of the Earth.

9. (n.) A century; the period of one hundred years.

10. (n.) The people who live at a particular period; hence, a generation.

11. (n.) A long time.

12. (v. i.) To grow aged; to become old; to show marks of age; as, he grew fat as he aged.

13. (v. t.) To cause to grow old; to impart the characteristics of age to; as, grief ages us.

Bronze Age Dark Ages Depression Era Golden Age Ice Age Iron Age Jacksonian Age Middle Ages New Deal Era Platonic year Prohibition Era Silver Age Steel Age Stone Age abidingness aboriginality aeon ages ancien regime ancientness annus magnus antiquate antiquity atavism become extinct become obsolete blue moon caducity century cheat the undertaker cobwebs of antiquity constancy continuance cycle cycle of indiction date day days decline defeat of time defiance of time develop diuturnity dodder durability durableness duration dust of ages eld elderliness eldership endurance epoch era eternity fade fail florid fossilize fust generation get along get on glacial epoch great age great year grow grow old grow up hoary age hoary eld indiction inveteracy lastingness life lifetime long long standing long time long while long-lastingness long-livedness longevity lose currency maintenance maturate mellow molder month of Sundays obsolesce old age old order old style oldness outdate perdurability perennation period of existence perish permanence perpetuity persistence primitiveness primogeniture primordialism primordiality right smart spell ripe ripen rust senectitude senescence senility seniority shake shrivel sink stability standing steadfastness superannuate survival survivance time totter turn gray turn white venerableness wane waste away wither wizen wrinkle years years on end