So in English when we say something is "a wish come true" it means that we have gotten the thing that we have been wishing for. So the best example would be you have been hoping that you'll get a new phone for your birthday. You have been saying to yourself, "I hope I get a new phone. I hope my parents buy me a new phone as a birthday gift." So you have been wishing for that new phone and then on your birthday if you open up the gift and it's the phone that you've been wishing for we would that that is "a wish come true". It's usually nice when your, when your wishes come true. Anyways, have a nice day! I hope all your wishes come true!