Just the thing to put an edge in one's performance.

"I do understand," she said, putting an edge to her voice.

Anger put an edge to her voice that even she could hear.

The extra morning coffee had put an edge on his emotions.

Well, that wasn't putting too fine an edge on it.

But we made sure to put a little edge on it.

And to put an edge on it, the thing had been said by one of his own juniors.

I don't know where she'd learned how, but she sure could put an edge on a knife.

She put an old fuzzy edge on the clear silver of her voice.

"This sound puts a new edge on a very old truth."