The word "Buddha" means "The Awakened (or Enlightened) One."
At first people did not know what to call him and asked him if he was a god, a devil, an angel, a person or what. Gautama replied simply, "I am awake." Thus he became known as the Buddha, which means the awakened one or the enlightened one.
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When the Buddha start to wander around India shortly after his enlightenment, he encountered several men who recognized him to be a very extraordinary being.
They asked him, "Are you a god?"
"No," he replied.
"Are you a reincarnation of god?"
"No," he replied.
"Are you a wizard, then?"
"No."
"Well, are you a man?"
"No."
"So what are you?" they asked, being very perplexed.
"I am awake."
Buddha means "The Awakened One". How to awaken is all he taught.
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