1) Agony 2) An instance of this 3) Hurting 4) Pain 5) Suffering 6) The act of excruciating 7) Torture 1) Agony 2) Throe 
• (n.) The act of inflicting agonizing pain, or the state of being thus afflicted; that which excruciates; torture.
Ex·cru`ci·a'tion noun [ Latin excruciatio .] The act of inflicting agonizing pain, or the state of being thus afflicted; that which excruciates; torture. Feltham. 
excruciation 1. The act of excruciating. 2. The state of being excruciated. 3. Torture is an instance of being in a state of excruciation. 4. The infliction of extremely painful punishment or suffering.
noun the infliction of extremely painful punishment or suffering
the act of excruciating. · the state of being excruciated. · an instance of this; torture.
a state of acute pain