noun
tumulus; grave mound; burial mound
Refers to an ancient earthen burial mound, especially those from the Kofun period in Japan.
この地域には多くの墳丘が残っている。
Many burial mounds remain in this area.
前方後円墳は日本特有の墳丘の形だ。
Keyhole-shaped mounds are a distinctive form of tumulus in Japan.