What is enlightenment?

So I read what enlightenment is to Immanuel Kant. And he says: "it's a man's release from his self-incurred tutelage." "What is tutelage?", was my first thought. I thought maybe it's responsibility or  morals. I looked up in the dictionary what the word means and it means the act of guarding, protecting, or guiding. But in this reading Kant goes on to say that tutelage is: "a man's inability to make use of his understanding without direction from another. "He also goes on to say that we do not live in an enlighten age but rather age of enlightenment. So we aren't fully with freedom as his idea of enlightenment would be i guess. : /