What does the word dominion mean in this sentence?

Please provide the sentence so I can help you understand the meaning of "dominion" in context.

For example, "The lion held dominion over the savanna" uses "dominion" to mean "rule" or "control".

Without the sentence, I can only give you the general definition of "dominion" which is:

* Supreme authority or control

* A territory or area of land under the rule of a sovereign