'Signs' in the Bible

But when he did come out, he was unable to speak to them. They realized that he had seen a vision in the temple; and he kept making signs to them, and remained mute.

Then they made signs to his father, as to what he wanted him called.

Now having been asked by the Pharisees when the kingdom of God would come, He replied, “The kingdom of God is not coming with signs to be observed or with a visible display;

There will be violent earthquakes, and in various places famines and [deadly and devastating] pestilences (plagues, epidemics); and there will be terrible sights and great signs from heaven.

“There will be signs (attesting miracles) in the sun and moon and stars; and on the earth [there will be] distress and anguish among nations, in perplexity at the roaring and tossing of the sea and the waves,