sniper
n. countablen. a person who shoots a gun from a hidden place, usually from far away. They are very skilled at hitting a specific target without being seen.
n. a person who shoots from a concealed position, typically at long range and with high precision. Often used in military or law enforcement contexts to describe a specialist marksman.
The sniper hid on the roof of the tall building.
The police called in a sniper to monitor the situation from a safe distance during the standoff.
Modern military doctrine treats the sniper not just as a marksman, but as a vital reconnaissance asset capable of providing real-time intelligence while remaining entirely undetected by enemy forces.
From snipe + -er.
Commonly used in military contexts; can also be used metaphorically in sports or gaming to describe someone who strikes from a distance.