From Wikipedia

Hitler's Germany-The Peoples Community

Gleichschaltung  meaning "coordination", "making the same", "bringing into line", is a Nazi term for the process by which the Nazi regime successively established a system of totalitarian control over the individual, and tight coordination over all aspects of society and commerce. The historian Richard J. Evans offered the term "forcible-coordination" in his most recent work on Nazi Germany.

One goal of this policy was to eliminate individualism by forcing everybody to adhere to a specific doctrine and way of thinking and to control as many aspects of life as possible using an invasive police force.