Empire
Empire (empire) in the Stellaris encyclopedia: An Empire is a galactic power controlling at least one System and typically seeking to expand its influence across the stars. The Ethics, Authority, and Civics shape their policies and behavior.
Empire in the game's words
The encyclopedia entry as the game shows it in its tooltips; underlined words open their own entry or page here.
An Empire is a galactic power controlling at least one 
System and typically seeking to expand its influence across the stars. The Ethics, Authority, and Civics shape their policies and behavior.
Interactions between Empires occur through diplomacy, trade, or conflict.
The expansion of Empires is visible in the 
Galaxy Map.
They can be contacted through their flag or the Contacts tab of the Contacts View.
Entries that mention Empire
More in Empire
Source: common/game_concepts (concept_empire, also concept_empires) and localisation/english, Stellaris Cygnus v4.5.2 (9776).