NoSQL stands for "Not Only SQL". It is a type of database technology that is different from traditional databases because it does not use the same kind of structure that traditional databases use. Instead of using tables to store data, NoSQL databases use collections of documents. These documents can contain different types of data and are organized differently than traditional databases. This makes it easier to store and access data, and it makes it faster to retrieve data from the database. NoSQL databases are especially useful for applications that need to manage large amounts of data.