συνέδρια [3 verses], (noun pl neut acc) "Councils" is synedrion (συνέδριον) , which means "council," "meeting," "councils of war," and "meeting room." -- "Councils" is the generic Greek term for "council" or "meeting. It is the word that the biblical name of the Jewish council, the Sanhedrin, was taken from. There was a Great Sanhedrin of 71 members in Jerusalem. Each city had a Lesser Sanhedrin of 23 members. Supposedly, there was only one Great Council, but the Greek version of the OT was written in Alexandria by the "Seventy," which seems to describe their local Great Council.