proof · certificate · identification · testimonial · to prove · to testify · to confirm the truth of

Can you prove it?

To those who seek peace and security. We support you. And to all those who have wondered if America's beacon still burns as bright, tonight we proved once more that the true strength of our nation comes not from the might of our arms or the scale of our wealth, but from the enduring power of our ideals: democracy, liberty, opportunity and unyielding hope.

She ignored him, which proved unwise.

My premonition turned out to be right.

This is our chance to answer that call. This is our moment. This is our time, to put our people back to work and open doors of opportunity for our kids; to restore prosperity and promote the cause of peace; to reclaim the American dream and reaffirm that fundamental truth, that out of many, we are one; that while we breathe, we hope. And where we are met with cynicism and doubt and those who tell us that we can't, we will respond with that timeless creed that sums up the spirit of a people: Yes, we can.