To outnumber is to have more people than the other party. When there are more people voting than the other party, it's usually a sign that they are in the majority.
The outnumbering of the vote was enough to make the decision official.
The outnumbering of the police force was enough to make them take action.
verb
(stative) to be more in number than somebody or something.
1
The Huns greatly outnumber the Goths.
2
The Muslims outnumber the Catholics.
3
The imitators outnumber the innovators.
4
The good guys outnumber the bad.
5
The proletarians inevitably outnumber the capitalists.
6
In the end, the losses would outnumber the gains.
7
Being outnumbered is childish and against the the spirit of wiki.
8
It's a pity the morons of the world outnumber the reasonable people.
9
In fact, in the early days the trustees threatened to outnumber the students.
10
However, the villains outnumber the heroes and regain control of the situation.