Turn Into Meaning

(idiomatic, transitive) To transform into; cause to become.

Example:   The carriage turned into a pumpkin at midnight.‎
1922, Margery Williams, The Velveteen Rabbit
  "I am the nursery magic Fairy," she said. "I take care of all the playthings that the children have loved. When they are old and worn out and the children don't need them any more, then I come and take them away with me and turn them into Real."
2013 June 22, “T time”, The Economist, volume 407, number 8841, page 68:
  Yet in “Through a Latte, Darkly”, a new study of how Starbucks has largely avoided paying tax in Britain, Edward Kleinbard […] shows that current tax rules make it easy for all sorts of firms to generate what he calls “stateless income”: […]. In Starbucks’s case, the firm has in effect turned the process of making an expensive cup of coffee into intellectual property.