the whole duration of a being, whether animal, vegetable, or other kind; lifetime.-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?-the latter part of life; an advanced period of life; seniority; state of being old.-one of the stages of life; as, the age of infancy, of youth, etc.-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.-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.-a particular period of time in history, as distinguished from others; as, the golden age, the age of pericles.-a great period in the history of the earth.-a century; the period of one hundred years.-the people who live at a particular period; hence, a generation.-a long time.-to grow aged; to become old; to show marks of age; as, he grew fat as he aged.-to cause to grow old; to impart the characteristics of age to; as, grief ages us.