Welcome to Hubpages! Exactly, if I want to reply your question, as per wikipedia, the meaning of 'apocalypse', which is basically a Greek word, is a disclosure of something hidden from the majority of mankind in an era dominated by falsehood and misconception. For detailed informations, please go through wikipedia.
I find more questions from your end, other than the above.
I suggest you start writing hubs here. Keep writing further!