Thayer's Greek Lexicon

 1. a god or goddess, a general name of deities or divinities
2. the Godhead, trinity
  1) God the Father, the first person in the trinity
  2) Christ, the second person of the trinity
  3) Holy Spirit, the third person in the trinity
3. spoken of the only and true God
  1) refers to the things of God
  2) his counsels, interests, things due to him
4. whatever can in any respect be likened unto God, or resemble him in
any way
  1) God's representative or viceregent
4a1. of magistrates and judges