The Oxford Thesaurus An A-Z Dictionary of Synonyms - age n.

1) lifetime, duration, length of existence; life-span: The age of a stag is judged chiefly by its antlers. She was sixteen years of age. 2) maturity, discretion; majority, adulthood, seniority: When he comes of age he will inherit millions. 3) period, stage, time: Among these people, both boys and girls undergo rites of passage at the age of puberty. He is a man of middle age. 4) long time, aeon or esp. US eon; years: I haven't seen you for an age! The noise went on for ages. 5) era, epoch, period, time: The 18th century was known as the Augustan Age in England. --v. 6) grow old(er) , mature, ripen: O, Matilda, I age too fast for my years! You must first age the whisky in the barrel, then bottle it.