灯とう火か管かん制せいTop 25000MeaningsNoun1. blackout (to prevent being seen by enemy aircraft during a nighttime air raid)Kanji used灯lamp火fire管pipe制controlPitch accentとうかかんせいComposed of灯とう火かlight; lamplightNoun管かん制せいcontrol (by the state); controlling; coordination; air traffic controlNoun