When he held it up to his face, she suddenly understood.

I suddenly understood that there would be no question of coming back here.

It was just suddenly understanding fully that death would come.

But her eyes narrowed as she suddenly understood what I was doing.

There was real passion in his voice and I suddenly understood.

I suddenly understood what the Fool had said to me earlier.

And Jack suddenly understood why this man had looked familiar before.

Tom looked into the Vessel's eyes, so much like his own, and suddenly understood.

A light of understanding suddenly flickered on within David's eyes.

Then he suddenly understood, and the action came simultaneously with understanding.