checkout area

checkout equipment

ground control checkout (verification) equipment

checkout, control and monitor system (CCMS)

launch checkout

preflight checkout

preflight readiness checkout

prototype checkout

ground checkout equipment (GCE)

checkout procedure

checkout equipment / test and control equipment, testing equipment

test and control equipment / testing equipment, checkout equipment

vertical checkout

checkout

checkout hut

potential danger area (trouble area)

hazard area / hazardous area

killing area / kill area

open area danger area

active combat area

air defense area

aircraft over the objective area phase

airspace control area

amphibious assault area

amphibious assault force landing area

amphibious objective area (AOA)

analysis of area of operations

anti-access and area denial (A2/AD)

anticyclone, high-pressure area

area air defense

area air defense commander (AADC)

area bombing

area cleanup