(noun) a group of businesses or enterprises under one control
(noun) the domain ruled by an emperor or empress; the region over which imperial dominion is exercised
(noun) a monarchy with an emperor as head of state
Definitions for Tristan
(noun) (Middle Ages) the nephew of the king of Cornwall who (according to legend) fell in love with his uncle's bride (Iseult) after they mistakenly drank a love potion that left them eternally in love with each other