1. a person who stabs someone with a knife or other sharp weapon
2. a tool or instrument used for stabbing or piercing

Examples

• The police arrested the stabber after reviewing security footage.
• Witnesses described the stabber as wearing a dark hoodie.
• The detective searched for the weapon used by the stabber.
• She used a leather stabber to make holes in the belt.
• The cobbler reached for his stabber to pierce the thick material.
• A sharp stabber is essential for detailed leatherwork.