Chat room and Internet site

Chat room noun - A site on the internet where a number of users can communicate in real time (typically one dedicated to a particular topic).

Internet site and chat room are semantically related. In some cases you can use "Internet site" instead a noun phrase "Chat room".

Internet site noun - A computer connected to the internet that maintains a series of web pages on the World Wide Web.

Chat room and internet site are semantically related. Sometimes you can replace phrase "Chat room" with "Internet site", this phrases are similar.