A government is the system to govern a state or community.
The word government derives, ultimately, from the Greek verb κυβερνάω [kubernáo] (meaning to steer with gubernaculum (rudder), the metaphorical sense being attested in Plato’s Ship of State).
The Columbia Encyclopedia defines government as “a system of social control under which the right to make laws, and the right to enforce them, is vested in a particular group in society”.
While all types of organizations have governance, the word government is often used more specifically to refer to the approximately 200 independent national governments on Earth, as well as their subsidiary organizations.
Finally, government is also sometimes used in English as a synonym for governance.