民みん間かん飛ひ行こうみんかんひこうMeanings1nouncivil aviationRefers to non-military, civilian air transport and flight operations.民みん間かん飛ひ行こうの安あん全ぜん基き準じゅんは年ねん々ねん厳きびしくなっている。Safety standards for civil aviation are becoming stricter every year.
