空くう挺てい降こう下か地ち域いきくうていこうかちいきMeanings1noundrop zoneMilitary term for a designated area where paratroopers or supplies are dropped from aircraft.空くう挺てい降こう下か地ち域いきに物ぶっ資しが投とう下かされた。Supplies were dropped onto the drop zone.
