萬人塚

万人冢
wànrénzhǒng
mass grave; common grave

CEDICT

mass grave

Wiktionary

埋有多具遺體的集體合葬墓穴

維基詞典

Entry Composition

1 萬人 wànrén
  1. ten thousand people
  2. all the people
  3. everyman
2 塚 zhǒng burial mound (variant of 冢 zhǒng)