The main terms you need to acquaint yourself with for now are:
The overall container for a collection of MySQL data.
A subcontainer within a database that stores the actual data.
A single record within a table, which may contain several fields.
The name of a field within a row.
I should note that I’m not trying to reproduce the precise terminology used in academic literature about relational databases, but just to provide simple, everyday terms to help you quickly grasp basic concepts and get started with a database.