What is male and female connector?

What is male connector and what is female connector?

A male connector is a connector that is attached to a wire, cable, or a piece of hardware, having one or more exposed, unshielded terminal and constructed in such a way that it can be inserted tightly into a holder (female connector) to ensure a reliable physical and electrical connection.

The "female" connector is generally a receptacle that receives and holds the "male" connector.