noun
civil aircraft; private aircraft
Refers to aircraft operated by private entities or for non-military purposes, as opposed to military or government aircraft.
この空港は民間航空機専用です。
This airport is exclusively for civil aircraft.
民間航空機の安全基準は年々厳しくなっている。
Safety standards for civil aircraft are becoming stricter every year.
Compound of 民間 (civil, private) + 航空 (aviation) + 機 (machine, aircraft).