age
noun
the length of time during which a being or thing has existed; length of life or existence to the time spoken of or referred to.
Used to describe an ongoing action or continuous state that will be taking place in the future.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The biggest call on the healthcare system will be ageing baby boomers and they are unwilling to foot the cost.
From The Guardian ● Dec. 6, 2010