The Federal Republic of Germany and its sixteen Bundesländer (federal states)
A federal republic is a federation of states with a republican form of government. A federation is the central government. The states in a federation also maintain all political sovereignty that they do not yield to the federation. Usage of the term republic is inconsistent but, as a minimum, it means a state or federation of states that does not have a monarch as head of state.
In English, the phrase "Federal Republic" was often used to refer to West Germany, in contrast with the German Democratic Republic, otherwise called East Germany.