HTML stands for Hyper Text Markup Language

Every single Web page on the Internet has some HTML markup included in its source.

HTML “tag” is a markup language, it means that it is written with codes

examples:

1. <em>

2. <dfn>

3. <code>

WYSIWYG is acronym that stands for "What You See is What You Get" in computer terms.

It means “Uniform Resource Locator”

Is a specific character string that constitutes a reference to a resource.

Usually the URL of a web page is displayed on top inside an adress bar

Examples:

"http://en.example.org/wiki/Main_Page"

Is a software system that is used to search any kind of information on the WWW

Examples:

Google.com

Ask.com

Yahoo.com

It means Word Wide Web

It is also abbreviated as w3