crosshairsnoun [ plural ]
uk/ˈkrɒs.heəz//ˈkrɑːs.herz/two thin wires crossing each other in a gun or other device, which you use to help you aim at something:
A sniper had them in his crosshairs.
The poster showed his face in the crosshairs of a rifle.
Idiom(s)
in sb's crosshairs