- usu millstone, mortar
A traditional tool for grinding grain or pounding mochi, now mostly seen in historical or cultural contexts rather than daily life.
祖母は臼で餅をつく。
Sobo wa usu de mochi o tsuku.
My grandmother pounds mochi with a mortar.
古い臼が庭に置いてある。
Furui usu ga niwa ni oite aru.
An old mortar is placed in the garden.
⚖️ Not to be confused with 石臼 (ishiusu), which is a specific stone millstone.
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