What does the word frank mean?

Usage examples for frank

  1. " Because you didn't ask me," replied Frank. – Tempest and Sunshine by Mary J. Holmes
  2. We must not stop being frank with each other now. – The Master-Knot of Human Fate by Ellis Meredith
  3. Why was I mad enough to let Frank know that I loved him? – The Frozen Deep by Wilkie Collins