Stab  —v. (-bb-) 1 pierce or wound with a knife etc. 2 (often foll. By at) aim a blow with such a weapon. 3 cause a sensation like being stabbed (stabbing pain). 4 hurt or distress (a person, feelings, etc.). —n. 1 act of stabbing. 2 wound from this. 3 colloq. Attempt. [origin unknown]