空くう域いきくういきCommon wordFreq.FrequencyTop 50,000Meanings1nounairspaceRefers to a defined area of the sky, often used in aviation, military, and legal contexts.その飛ひ行こう機きは日本にほんの空くう域いきに入はいった。The airplane entered Japanese airspace.軍ぐん用よう機きが空くう域いきを侵しん犯ぱんした。A military aircraft violated the airspace.
