So Internet means a sites or places that are connected from one to the other. International means between countries. This helps you understand long words. What it then does depends on what command and information you gave. A word used in a search to find web pages on the Internet relating to a particular subject.
Most people have two names, some have three or more.
Your name identifies you. You last name is your family name, it is usually the same for everyone in your family. For most peoples, this name comes after the name that everyone calls you everyday. Your first name is how the name that you are called everyday by your family and your friends. It also means that the information you want is on the internet, instead of in a regular book or text.