If you leave the paint out in the sun, it will age like milk and become unusable.

The museum's new exhibit features tools and cave paintings from the Old Stone Age.

As one grows older, it's natural to look one's age.

Historians debate how the Little Ice Age affected agriculture and migration patterns across Europe between the fourteenth and nineteenth centuries.

Many economists argue that increasing contributions now will secure old age pensions for future generations.

When she landed the lead role despite being older than most candidates, her agent shrugged and said, 'age is just a number,' and she proved it on opening night.

The leftover coffee was ageing like milk on the counter, so I threw it out before anyone got sick.

Her management approach, stuck in the Stone Age, hindered the team's ability to adopt new tools.

Geologists discovered well-preserved trilobite fossils in sedimentary layers dating to the Lower Paleozoic Age.

During the lecture, she highlighted key fossil assemblages characteristic of the Lower Palæozoic Age.