zone in depth

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)

defense in depth

depth bomb / charge

depth contour

depth curve

depth of battlefield (battlespace)

depth of formation

depth of penetration

depth of the service area

depth sounder

diving depth

echo depth finder

lateral and in-depth dispersion

march depth

position defense (in depth)

shallow depth

wargaming methods / techniques (belt, avenue in depth, box, belt-in-time)

specified depth

pavement depth factor (PDF)

arrange in depth

coordinate fire laterally and in depth

depth fire

depth of fire setting

effective depth of fire

effective fire depth