A network is the name given to things which are connected together. For example, your network of connections, are all the people you’ve met. A telephone network, is a series of connections through which all telephones may reach each other.
The internet is a form of “network of networks” of which one of the most popular is the “World Wide Web” or “web” for short. The web is where we are mainly focused, at Silicon Dales, so a lot of the time, when we talk about “network” we are usually talking about DNS or some other internet based or web-based network terminology.