Wireframe is a term used in website planning. It is a kind of preview of the future web page. The preview is created before the actual programming and building of the website begins.
This draft captures the placement of all the important elements on the page, such as the menu, header, columns, search and so on. It is a basic layout using only lines and text.
Use
A wireframe is used when communicating with the customer to give an idea of what the final project will look like. It also serves designers and developers as a template to work from. For these reasons, a wireframe is considered a very important part of the development phase of a website.