IPA: /ˈstæbər/
KK: /ˈstæbər/
A person or thing that stabs, usually with a sharp object like a knife.
The stabber was caught by the police after the incident.
Stabber → The word is formed from "stab" (of uncertain origin, possibly from Middle English *stabben*, meaning to pierce or thrust) and the suffix "-er" (meaning a person who performs an action). A stabber is a person who stabs or thrusts with a pointed weapon.
Think of someone who 'thrusts' or 'pierces' with a weapon — that's what a stabber does.