Searching is used to separate signals from noise and find something quickly. Additionally search can provide insights into what things are popular (many searches), what things are difficult to find on a site, in such that the site can be improved.
- The datastore used by a search engine. Its actual structure can vary widely between search engines but commonly they resemble a document store.
- A collection of documents.
- Generally a single word (or word-like) string of characters used in a search query.