The phrase "entire empire" refers to all the lands and territories controlled by a ruler or a country, from the smallest villages to the largest cities. It means having power and authority over a vast area or dominion. Full definition
Due to technological advances in computing, working remotely is more widely accepted than it was 5 - 10 years ago; and it's not uncommon for entrepreneurs to start and manage entire empires from the comfort of their homes. (allwork.space)
The act of conquering entire empires should be exciting, but Stellaris somehow makes it a dull process. (wolfsgamingblog.com)
People built entire empires and economic systems on their ability to exploit what seemed to be inexhaustible riches, never realizing that the privilege would come to an end. (scientificamerican.com)