骨壷 こつつぼ Also written 骨壺 Meanings Noun funerary urn; cinerary urn; burial urn; cremation urn Kanji 骨 bone. Read as コツ. 壷 jar; pot; hinge knuckle. Read as つぼ. Example sentences 祖母の遺灰は寺院に置かれた骨壷に入っている。Grandmother's ashes are in an urn at the temple. Jinuma: Japanese Dictionary · Word lists