空域(くういき) くういき noun airspace transportation 1. airspace A designated region of the sky, especially as controlled or restricted for aviation, defense, or air-traffic purposes. 軍(ぐん)の訓練(くんれん)空域(くういき)に入(はい)ってはいけない。🔊 You must not enter the military training airspace. その国(くに)は自国(じこく)の空域(くういき)を厳(きび)しく守(まも)っている。🔊 That country strictly guards its own airspace. 管制官(かんせいかん)は混雑(こんざつ)した空域(くういき)で航空機(こうくうき)を安全(あんぜん)に誘導(ゆうどう)する。🔊 Controllers safely guide aircraft through congested airspace. A somewhat formal or technical term used in aviation, defense, and news reporting.Common collocations空域(くういき)に入(はい)る: to enter an airspace空域(くういき)を侵犯(しんぱん)する: to violate airspace訓練(くんれん)空域(くういき): training airspaceSimilar words領空(りょうくう): territorial airspace — specifically the airspace over a nation's territory Related Words Compare: 領空(りょうくう) (territorial airspace) Related: 上空(じょうくう) (sky above, airspace) general Added 2026.5.24 11:02 · Revised 2026.9.2 13:02 27500/27983_kuuiki