Doesn't it also mean to elevate or glorify?
It would mean to elevate in terms of idealizing. This definition would not apply in terms of physical elevation or going from Earth to Heaven.
I believe an honest reading of the 17th Chapter of Matthew can only result in the fact that Moses and Elijah left wherever they had been since they left the Earth by Chariot or Death. And, they were present with the Physical (not an image) Jesus on the top of the Mount of Transfiguration. Peter called to the Lord as he was right there.
Jesus was not brought to Heaven. He did not return to the father until after the Ressurection. His Glory touched down on Earth. That is one of the miracle of the Incarnation of Christ. What was in Heaven and Heaven could not contain became a baby.