Definition - What does Address Bar mean?
An address bar is a component of an Internet browser which is used to input and show the address of a website. The address bar helps the user in navigation by allowing entry of an Internet Protocol address or the uniform resource locator of a website. It can also save previously used addresses for future reference.
An address bar is also known as a uniform resource locator (URL) bar, location bar or address box.
Techopedia explains Address Bar
Address bars have been a regular feature in most Web browsers since their early versions. They are usually located at the top of the browser and can be hidden with the help of settings in most Web browsers. Address bars support searching functionality and also offer features like auto-completion and at times a list of suggestions based on addresses in a browser’s Web history. However, unlike a search box, an address bar does not support multiple search engines. The user must type search terms in the address bar of most Web browsers and hit Enter to navigate to the default search engine results page. In the case of some Web browsers, address bars are capable of detecting Web feeds that are used to subscribe to Web pages.
Most Internet browsers provide the shortcut Ctrl+L to navigate to the address bar with the help of the keyboard, thus eliminating the need for a mouse.