ぜんぽうこうえんふん 前方後円墳 LinksSentence search for 前方後円墳Sentence search for ぜんぽうこうえんふんKanji details for 前, 方, 後, 円 and 墳Edit in JMdict Noun1. keyhole-shaped ancient Japanese tumulusArcheology Discussions Log in to talk about this word.