# ἄγγελος/aggelos
This word is a type of person. It is a noun. 

* This word means a person whom someone has sent.
    * This can be a messenger. That is, a person who delivers messages. God or another person can send a messenger. 
    * This can be an angel. Angels deliver messages from God or do things for God. God sends angels.
    * This can be a demon. A demon is an angel who does not obey God. 
    * Some scholars think that in Revelation 2-3 this word means the leader of a group of Christians.