(~es)
1.
A ~ is a small temporary platform on which a person stands when he or she is making a speech outdoors.
One of them climbed aboard a ~ and began informing the locals why gays should be allowed in the military.
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2.
If you say that someone is on their ~, you mean that they are speaking or writing about something they have strong feelings about.
We were interested in pushing forward certain issues and getting up on our ~ about them...
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