How do you spell "come back"?

We just had a great visit with my sister Jo and my niece Marley. It's great to get the cousins together. As a kid I didn't have first cousins that were close in age so I always felt I missed out on that. After they left yesterday Talia was coloring a picture for my sister and she said, "How do you spell Jojo"? A few minutes later she said, "How do you spell "come back"? My sentiments exactly.