The countdown display had appeared at the top of the screen to confirm his words.

He checked the missiles and confirmed the dead soldier's words.

I do not need to, for I know that they will confirm your words.

Tyr confirmed her words with as few of his own as possible.

You must produce the person who can confirm my words.

And as if to confirm his words, the distant thunder growled again.

A "sign", in this context, means a special event which confirms the prophet's words.

"They are quite odd, however; let me think, for she told me some other things that would confirm her words."

A glance towards the windows confirmed his words and made her shiver even more.

As if to confirm his words, a rattle of static emerged from the speakers.