pentarchy

Government by five rulers.

A body of five joint rulers.

An association or federation of five governments, each ruled by a different leader.

A government vested in five persons.

A group of five rulers, or of five influential persons.

Any group of five.

A government in the hands of five persons; five joint rulers.

Government by five persons.

A governing body consisting of five persons.

A federation of five nations, each under its own government or ruler.