Definition of "Age" :
noun: how long something has existed
"It was replaced because of its age."
noun: a time of life (usually defined in years) at which some particular qualification or power arises
"She was now of school age."
noun: a late time of life
"Old age is not for sissies."
noun: a prolonged period of time
"We've known each other for ages."
noun: an era of history having some distinctive feature
"We live in a litigious age."
verb: grow old or older
"She aged gracefully."
verb: begin to seem older; get older
"The death of his wife caused him to age fast."
verb: make older
"The death of his child aged him tremendously."