control zone

grid zone / grid-zone

zone standard time (zone time) (ZST)

killing zone / kill zone

grid zone designation / Grid Zone Designator

grey-zone / grey zone (international relations)

hundred-per-cent zone (one-hundred-per-cent zone)

no-fire zone / no fire zone

flight restriction zone / flight restricted zone (FRZ)

merchant ship control zone

airspace control zone (DACZ)

high-density airspace control zone (HIDACZ)

pickup-zone control officer

pathfinder drop zone control

gun control equipment / gun-control equipment (GCE)

individual control (of fire) / individual fire control

anti-torque control pedal / directional control pedal

directional control pedal / anti-torque control pedal

control surface / control-surface

roll-control / roll control

time-gain control / gain time control

fire-control director / fire control director

aileron control rod (from control wheel)

air defense zone

air defense zone commander

air exclusion zone

area of separation (=buffer zone)

assault dropping zone

buffer zone / area of separation

cold zone (CBRN)

combat zone

communications zone (COMMZ)

contact zone