King James Version
And for that the dream was doubled unto Pharaoh twice; it is because the thing is established by God, and God will shortly bring it to pass.English Standard Version
And the doubling of Pharaoh's dream means that the thing is fixed by God, and God will shortly bring it about.Catholic Public Domain Version
Now, as to what you saw the second time, it is a dream pertaining to the same thing. It is an indication of its firmness, because the word of God shall be done, and it shall be completed swiftly