'Signs' in the Bible

Thine adversaries roar in the midst of thy place of assembly; they set up their signs for signs.

We see not our signs; there is no more any prophet, neither is there among us any that knoweth how long.

How he set his signs in Egypt, and his miracles in the field of Zoan;

They set his signs among them, and miracles in the land of Ham.

Who sent signs and miracles into the midst of thee, O Egypt, upon Pharaoh and upon all his servants;