Tags are descriptive labels or keywords assigned to content items, elements, or data to categorize and organize them in a structured manner. They are used to group related items together and make it easier for users to search, filter, or navigate through content. Tags are commonly used in various contexts, including blog posts, products, images, and more.

For example, in a blogging platform, articles can be tagged with keywords related to their topics, such as "technology," "health," or "travel." This allows users to click on a tag and see a collection of articles that share that tag. Tags also help improve discoverability, as users can find relevant content more efficiently.

Google's Material Design introduced the term "chips" which is now used interchangeably with the word "tags" (although "chips" can refer to elements beyond tags as well).^[1]