Their central functions have changed a trillion times more than our attitudes toward them.

Their functions change with season and perspective, even from day to night.

This function will change over time as heat spreads throughout space.

Over the years its name and functions have changed several times.

Over time the meaning and the function of the word changed.

Some of these organizations still exist, although their functions have changed.

Over the years the symbolic function of hair has changed, particularly in African cities.

Today its function has barely changed since those days of Roman times.

Since 1945, the department's functions and responsibilities have changed several times.

The house's original floor plan remains, although the functions of the rooms have changed.