砕身 さいしん Also written 摧身 Meanings Noun, する verb working so hard as to ruin one's body; struggling to the point of crushing oneself Kanji 砕 smash. Read as サイ. 身 body. Read as シン. Words containing 砕身 粉骨砕身 (ふんこつさいしん) making one's best exertions Jinuma: Japanese Dictionary · Word lists