Is deaf still deaf?

I am watching christian television, and notice how there is close-captioning, also notice there is sign-langage, and hearing aids and considering all of this, even though a deaf person can't really hear a thing are they really deaf?
Update: by the if any disrespect is received I do apologize, I do not mean any
Update 2: The real question here in case no one realizes is.With Sign-Language, closed captioning, and hearing aids, can, should a deaf person be still called deaf
Update 3: Yes I realize Closed captioning, hearing aids, and sign-language are all devices
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