1. HTML- Hypertext Markup Language: which is just a programmed language used to create web pages.
2. Index- The name of the first or home page of most web pages.
3. URL- Uniform Recource Locator: which is the adress of a web page.
4. Hyperlink- A link to another page.
5. http- Hypertext transfer protocol: which is the set of rules for transfering files.