She kept a cardboard trunk labeled yester-years, full of letters and faded postcards from earlier times.

The contract remains valid for the next five civil years.

Large spiral arms can persist for several galactic years before dissolving.

Astronomers calculated that the distant system would need dozens of Platonic years to settle into a stable orbital configuration.

You should keep receipts for the past three tax years in case of an audit.

Over the past two decades, several water years have shown unprecedented drought conditions.

Reports covering multiple half-years revealed a steady improvement in sales.

Astronomers studied the variations in Earth's orbital eccentricity over several anomalistic years to understand changes in the timing of its closest approach to the Sun.

Climate records show fluctuations over multiple solar years, indicating slow cyclical changes.

Year in, year out, the volunteers repaint the playground to keep it safe for children.