平へい安あん京きょうTop 45000MeaningsNoun1. Heian-kyō; former name of Kyoto, capital city of Japan from 794 to 1869 (Historical)Kanji used平flat安peace of mind京capitalPitch accentへいあんきょうComposed of平へい安あんpeace; tranquility; tranquillityNoun京きょうimperial capital (esp. Kyoto); final word of an iroha poem; 10^16; 10,000,000,000,000,000; ten quadrillionNoun