飛ひ行こう禁きん止し空くう域いき

noun

no-fly zone

A designated airspace where aircraft are not permitted to fly, often for security or military reasons.

• その地ち域いきは飛ひ行こう禁きん止し空くう域いきに指し定ていされた。

  That area has been designated a no-fly zone.