stun

The condition of being stunned.

That which stuns; a shock; a stupefying blow.

A person who lacks intelligence.

The effect on the cue ball where the ball is hit without topspin, backspin or sidespin.

“Williams will need a lot of stun to avoid going in the middle pocket”

To incapacitate; especially by inducing disorientation or unconsciousness.

“Bill tried to stun the snake by striking it on the head.”

To shock or surprise.

“He stood there stunned, looking at the beautiful, breath-taking sunrise.”

To hit the cue ball so that it slides without topspin or backspin (and with or without sidespin) and continues at a natural angle after contact with the object ball