It occurs, first, in the sense of a person who deposes to the occurrence of any fact, a witness of any event. It means a judicial witness in ; ; ; (comp. ; ; ; ); ; ; ; ; ; . It is applied, generally, to a person who certifies, or is able to certify, to any fact which has come under his cognizance (; ; ; ; ; ; ; ; ). So in allusion to those who witness the public games (). It is also applied to anyone who testifies to the world what God reveals through him (). In the latter sense the Greek word is applied to our Lord (; ). It is further used in the ecclesiastical sense of martyr.