Agonise is a term used to describe intense suffering or distress. It can be caused by physical or mental pain, and is often associated with emotional turmoil. FRET, BLEED, ABUSE, TORMENT, and CRUCIFY are all words that can be used to describe the act of agonising. FRET is a verb meaning to worry or feel anxious, while BLEED is a verb meaning to lose blood. ABUSE is a verb meaning to mistreat or harm someone, and TORMENT is a verb meaning to cause severe mental or physical suffering. CRUCIFY is a verb meaning to punish or torture someone in a cruel and unusual way. All of these words can be used to describe the act of agonising.