Uniform resource locator. A link to an addressable location on the Internet.
Web
Also known as the World Wide Web, it's a hypertext-based document retrieval system with machines linked to the Internet. This enables you to view documents, especially ones that are graphical in nature.
wizard
A specialized template that asks you questions about what type of document you want to create and then generates the document for you based on your answers.
workbook
An Excel document that contains one or more worksheets or chart sheets.
worksheet
In Excel, the workbook component that contains cell data, formulas, and charts.