To bring to an end forcibly as if by imposing a heavy weight
To hold (something requiring an outlet) in check
The worse kind of lawsuits are those that governments and organizations might use to squelch the voices of individuals who disagree with them.
Nothing will squelch all your hard work like a stack of invitations returned because they were low on postage.
Trying to squelch the fear in her voice, she only nodded.
Very well, I shall squelch my lust until you are nourished.
Oh, that should squelch any wagging tongues.