A stun gun, also known as a taser, is an electroshock weapon that uses electric current to temporarily incapacitate a person. It is often used by law enforcement and security personnel to subdue suspects or criminals. The term USE A STUN GUN can be broken down into two crossword solutions: LASE (4 letters) and ZAP (3 letters). LASE stands for Light Amplification by Stimulated Emission of Radiation, which is a type of laser technology. ZAP is a slang term for a sudden burst of electricity or energy. Together, these two words describe the action of using a stun gun.