noun

The length of time that a person has lived or a thing has existed: For example, "She is 30 years of age."

verb

As a verb, "age" means:

To grow older: For example, "She is aging gracefully."
To become older or more mature: For example, "The cheese needs to age for several months to develop its flavor."

Example

noun

1. He has achieved great success at such a young age.
2. The age of the building is unknown.
3. She looks much younger than her actual age.

verb

1. She has three children of different ages.
2. They studied the effects of different ages on the brain.
3. He is in his late twenties, a transitional age in life.