ゆうせい優勢yuusei
1.

A state or condition in which one side holds greater strength or advantage over another in a competitive situation.

2.

The quality of having an upper hand or favorable position in a struggle, contest, or comparison, often reflected in improved odds or outcomes.

3.

The aspect of prevailing circumstances that indicates a dominant or advantageous force in a specific context or scenario.

4.

The characteristic of being in a stronger or more advantageous position relative to others, often resulting in a greater likelihood of success.

Example:

人類は地球上で最も優勢である。