Component 臼 jiù mortar (stone vessel for grinding or pounding grain) Stroke order ▶ 臼 used in 4 characters HSK 5 插 chā to insert, stick in, or thrust (a long or flat object) into something HSK 6 舅 jiù maternal uncle HSK 7 毁 huǐ to destroy; to ruin 舆 yú (lit.) carriage; cart