"However, these results suggest that over time the differences among experimental and control groups diminish further as the students progress through the school system."

But as the numbers increase, the differences in potency diminish.

However, differences between the sexes in economic activity have diminished over the years.

These days, the difference between the cost of college and what the typical student can afford certainly has not diminished.

When the company saw the difference between subprime and prime diminish, he simply left the business.

Our differences have diminished, and therefore we are bound to reach an agreement very soon.

But now, she added, "those differences have been diminishing."

These differences have diminished slightly over the last two decades.

While the differences have diminished, he said the gap would have to be further reduced if the general's campaign is to succeed.

The big question, however, is how long Super's journalistic formula will work, as the differences between east and west diminish.