empirea group of nations or regions ruled by an emperor or empress
Definitions:
An extensive group of states or countries ruled over by a single monarch, an oligarchy, or a sovereign state.
republica state in which power is held by the people
Definitions:
A state in which supreme power is held by the people and their elected representatives, and which has an elected or nominated president rather than a monarch.
senatean institution of government or law-making body
Definitions:
A legislative assembly in certain countries.
dictatorsomeone who rules with total authority
Definitions:
A ruler with total power over a country, typically one who has obtained control by force.
civil wara war between citizens of the same country
Definitions:
A war between citizens of the same country or nation.
oligarchya small group of people having control over a country
Definitions:
A small group of people having control of a country, organization, or institution.
triumviratea group of three powerful or important people
Definitions:
A group of three men holding power.
expansionthe action of becoming larger
Definitions:
The action of becoming larger or more extensive.
monarcha person who reigns over a kingdom or empire
Definitions:
A sovereign head of state, especially a king, queen, or emperor.
transitionthe process of changing from one state or condition to another
Definitions:
The process or a period of changing from one state or condition to another.