Wiktionary
n. (context law enforcement English) An armed person working to provide order, security, discipline, punishment, and prevent escapes of prisoners in a jail that answers to a warden
WordNet
Usage examples of "prison guard".
A vague computer drawing, a possible eye condition, a possible habit, a grudge against a prison guard.
The young prison guard looked crushed, but Longarm was secretly glad that he didn't have to tell Hawkins that he would rather try to take Juan Ortega captive alone.
And now Clyde Carter, the prison guard I had been waiting for so long on my cot, came to get me at last.
They made their way to the corridor that housed the prison guard, and Aranur hesitated inside the entrance.
Skynxnex had wrangled a nominal post as a prison guard in the correction facility, but now he seemed to have changed jobs .
Disgusted, Qannadi turned His back upon the prison guard and gazed out a square window at nothing with magnificent aplomb.
Finally a sliding panel in the door jerked open and a grim-faced prison guard studied their Guards' uniforms for a long moment before slamming the panel shut and opening the judas gate in the main door to let them in.