dominion-n; 2 Senses

Sense Number 1: having power or control over something

Commentary: DOMINION[+state][+power][+rule][+sovereign/+political/+natural]

The British navy had dominion of the seas during the 19th century.
It was another attempt of humankind to establish dominion over nature.

WordNet 3.0 Sense Numbers: 1

Sense Number 2: a territory or district administered towards some purpose

Commentary: DOMINION[+location][+geographical][+territory][+administered]

These dominions are all property of the King of France.
It is a small dominion on the edge of the Pacific Ocean.
This dominion changed political hands many times during the 18th century.

WordNet 3.0 Sense Numbers: 2