Settled Empire
Settled Empire (empire) in the Stellaris encyclopedia: Settled Empires are civilizations that govern from stationary Colonies on Planets, claiming Systems and defending them with Starbases.
Settled Empire in the game's words
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Settled Empires are civilizations that govern from stationary 
Colonies on Planets, claiming 
Systems and defending them with Starbases.
From the perspective of 
Nomadic Empires, Settled Empires are potential partners for 
Contracts and Diplomatic Pacts, though diplomatic friction may arise when nomadic fleets cross their borders.
Entries that mention Settled Empire
More in Empire
Source: common/game_concepts (concept_settled_empire, also concept_settled_empires) and localisation/english, Stellaris Cygnus v4.5.2 (9776).