'Signs' in the Bible

And [when he] came out he was not able to speak to them, and they realized that he had seen a vision in the temple. And he kept making signs to them, and remained unable to speak.

So they made signs to his father [asking] what he wanted him to be named,

There will be great earthquakes and famines and plagues in [various] places. There will be terrible sights and great signs from heaven.

"And there will be signs in the sun and moon and stars, and on the earth distress of nations in perplexity from the noise of the sea and [its] surging,