Definition of "database"

(general) A collection of (usually) organized information in a regular structure, usually but not necessarily in a machine-readable format accessible by a computer.  examples

(computing) A set of tables and other objects (queries, reports, forms) in the form of a structured data set.  examples

(computing, loosely, metonymically) A software program (application) for storing, retrieving and manipulating such a structured data set.  examples

(computing, loosely, metonymically) A combination of such data sets and the programs for using them.  examples

To enter data into a database.  quotations  examples