high-density airspace control zone (HIDACZ)

airspace control zone (DACZ)

high-density metal

high density shock tube

high density air traffic

high-density airport

high-density atmosphere

airspace control (AC)

airspace control area

airspace control authority

Airspace Control Means (ACMs)

Airspace Control Measure Request (ACMREQ)

Airspace Control Order (ACO)

airspace control plan

Allied Joint Doctrine for Airspace Control (AJP-3.3.5)

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)

high altitude-high opening (HAHO)

high pay-off target / high-payoff target (HPT)

high-burst / high burst (HB)

high road; high-road

high-power illuminator radar / high power illuminating radar (HIPIR)

high-performance / high performance

Air defense and Airspace Management Directorate (NATO)

airspace

airspace and traffic management

airspace management