Stroke count: 11
Meaning: pound (mortar), sink, set (sun)
Kunyomi: うすつ.く うすづ.く つ.く
Onyomi: ショウ
Composition: 臼
Radical: 臼
Meaning: mortar
舂米 （ショウマイ） polished rice, white rice, husking rice with a mortar and pestle
臼搗く （うすづく） to pound (rice, etc.)
搗く （つく） to hull (rice, barley, etc.), to pound (rice), to polish (rice), to stamp (ore)