Are you wondering what the title of this book is all about? Worry not—Shmoop is here to help.
Wonder works on a couple of levels. And while the significance of the title is deepened greatly as the story unfolds, right away it tips us off to a couple of key facets to this book. We know immediately that we are going to be in unusual territory because one thing that wonder indicates is something remarkable. We also know before cracking the cover that we may experience awe as we read—that is, we may find ourselves in a state of wonder. And lastly, we get tipped off to the fact that we just might encounter an exceptional human being, since they are often called wonders.
And, of course, all of this comes true as we read. Want to think on this some more? Here's a link to a very thorough dictionary definition for your consideration.