運航うんこう Common Noun Irregular Transitive Intransitive English jmdict 1 noun (common) (futsuumeishi) noun or participle which takes the aux. verb suru transitive verb intransitive verb operation (of a ship or aircraft route);service;navigation;flight 君は運がよかった。飛行機は定時運航だよ。 You're in luck. The plane is on time.