骨箱 こつばこ Meanings Noun box in which ashes of the deceased are kept; box in which a funerary urn is kept Kanji 骨 bone. Read as コツ. 箱 box. Read as はこ. Words containing 骨箱 聖骨箱 (せいこつばこ) reliquary Jinuma: Japanese Dictionary · Word lists