It took a certain act of will, but he kept his mind from calling out again to the silence.

Act - This trigger runs in response to a certain act.

I hear your name attached to a certain act of heroic lunacy at the government center this morning.

Instead, usually the law only requires the conspirators have agreed to engage in a certain illegal act.

A written court order directing a person to take, or refrain from taking, a certain act.

Restraining order - requires a party to do, or to refrain from doing, certain acts.

He said that the government should ensure a free inquiry into this case but certain acts have indicated a 'possible cover up'.

One stance is that no individual can legally consent to certain acts.

Special Springs can be found near the top of certain acts.

Which means that these certain acts are a violation of conscience or divine law.