Vocabulary What does 紀元 (きげん, kigen) mean? 紀元 (きげん, kigen) means era. Quick factsReadingきげんRomajikigenPart of speechnoun 紀元きげんkigenera1noun era2noun CE (Common Era); AD (Anno Domini)Kanji in this word紀era; order, discipline; record, chronicle元origin, source, beginning; former