What Does Tag Mean?
A tag is a piece of information that describes the data or content that it is assigned to. Tags are nonhierarchical keywords used for Internet bookmarks, digital images, videos, files and so on. A tag doesn’t carry any information or semantics itself.
Techopedia Explains Tag
Tags can be in the form of words, images or marks. They help search engines identify the content of pages online and, using that information, produce the best results for a given search. Tagging was popularized by websites associated with Web 2.0.
