Meaning : The domain ruled by an emperor or empress. The region over which imperial dominion is exercised.
Synonyms : imperium
Meaning : A group of countries under a single authority.
Example :
The British created a great empire.
Meaning : A monarchy with an emperor as head of state.
Meaning : A group of diverse companies under common ownership and run as a single organization.
Synonyms : conglomerate
Meaning : An eating apple that somewhat resembles a McIntosh. Used as both an eating and a cooking apple.