If you refer, for example, to a young man as a wonder boy, or to a new product as a wonder drug, you mean that they are believed by many people to be very good or very effective. Mickelson was hailed as the wonder boy of American golf
politeness You can say `I wonder' if you want to be very polite when you are asking someone to do something, or when you are asking them for their opinion or for information. I was just wondering if you could help me
Wonder is a feeling of great surprise and pleasure that you have, for example when you see something that is very beautiful, or when something happens that you thought was impossible. `That's right!' Bobby exclaimed in wonder. `How did you remember that?'
If you say that it is a wonder that something happened, you mean that it is very surprising and unexpected. It's a wonder that it took almost ten years The wonder is that Olivier was not seriously hurt
If you say `no wonder', `little wonder', or `small wonder', you mean that something is not surprising. No wonder my brother wasn't feeling well Under such circumstances, it is little wonder that they experience difficulties