To repress the expression of something.
To suppress criticism, etc.
To block gene expression.
To murder.
To make (someone or something) silent.
Be silent.
deadly silence
The act of refraining from speaking.
The absence of any sound.
To declare publicly that one has made a vow, usually to show one's determination or to announce an act of retaliation.
To make a vow; to promise.
To make a vow regarding (something).
A solemn promise to perform some act, or behave in a specified manner, especially a promise to live and act in accordance with the rules of a religious order.
A declaration or assertion.