Empires are geographically extensive groups of states (normally countries or worlds) and peoples (ethnic groups) united and each of them are ruled by a central authority, either by a monarch (emperor, empress) or an oligarchy. The term "Empire" is derived from the Latin term "imperium" (a rule, a command; authority, control, power; supreme power, sole dominion; military authority; a dominion, realm) from "imperare" (to command).
Aside from the traditional usage, the term "empire" can also be used to describe a large-scale business enterprise (e.g., a transnational corporation), a political organization controlled by a single individual (apolitical boss) or a group (political bosses).
An imperial political structure can established and maintained in two ways: (I) as a territorial empire of direct conquest and control with force or (II) as a coercive, hegemonic empire of indirect conquest and control with power. The former method provides greater tribute and direct political control, yet limits further expansion because it absorbs military forces to fixed garrisons. The latter method provides less tribute and indirect control, but avails military forces for further expansion. Territorial empires (e.g., the Mongol Empire and the Median Empire) tend to be contiguous areas. The term, on occasion, has been applied to maritime empires or thalassocracies, (e.g., the Athenian and British empires) with looser structures and more scattered territories. Empires are usually larger than kingdoms.
- The Aztec Empire
- The Badan Empire
- The Baranoia Empire
- The Covenant Empire (also known as the Covenant)
- The Crisis Empire
- The Dark Science Empire Deathdark
- The Deus.Ex.Machina Industries Empire
- The Dominion (Star Trek)
- The Draygonia Empire
- The Eggman Empire (also known as the Robotnik Empire)
- The Empire (Akame Ga Kill!)
- The Empire (Gate)
- The Empire of the Night
- The Empire of the Rising Sun
- The Galactic Empire
- The Garanda Empire
- The Godom Empire
- The Gentlemen Thief Empire
- The Gestahlian Empire
- The Gittish Empire
- The Gobligan Empire
- The Helghan Empire
- The Holy Britannian Empire
- The Holy Empire & Orthodox Church
- The Irken Empire
- The Klingon-Cardassian Alliance
- The Kushan Empire
- The Lars Empire
- The Machine Empire
- The Machine Empire Black Magma
- The Machine Onslaught Empire Matrintis
- The Motorhead Empire
- The Nefarious Empire
- The Neo Empire Gear
- The New Robotnik Empire
- The ORN Empire
- The Phantom Empire
- The Romun Empire
- The Secret Empire
- The Space Empire Zangyack
- The Tailed-People Clan Jashinka Empire
- The Terran Empire
- The Vaktovian Empire
- The Vers Empire
- The Vigoor Empire
- The Zanscare Empire
- The Zin Empire
- The Zoul Empire