"There's a certain social energy and a little bounce to her voice that I used," she says.

All particles exist in states that may be characterized by a certain energy, momentum and mass.

Even Ingrid had stage style, a certain energy that made her project something over the footlights.

I also tried to create a certain comic energy that the original story didn't allow for.

The convivial atmosphere of the house concert is a great way to share that certain energy.

But that also lent a certain energy to the enterprise.

This spring, we played very well, with a certain energy.

"I'm interested in the 20th-century blurring of things that have a certain energy and humor," he said.

Any kind of wave (mechanical or electromagnetic) has a certain energy.

At the same time, radiation emissions were known to have certain characteristic energies.