The task must also represent an advance, or new complexity.

It represents an advance in the technology of warfare you would do well to fear.

It represented a major advance compared to previous British guns.

Adding four additional months represents "a huge advance," she said.

This approach represents a considerable advance, but it also brings its own set of problems.

Surgeons describe the new material as having the potential to represent a real advance.

Doctors and analysts say the drug represents an advance but is far from a cure.

But in its time it represented a real advance.

That may not sound very imposing, but it represented a major advance.

The F-22 represents a significant advance in cruise speed over previous types.