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koku

noun ko·ku \ ˈkō(ˌ)kü \

Definition of koku

plural koku
:any of three Japanese units of capacity:
a :a unit for dry measure equal to 5.12 bushels
b :a unit for liquid measure equal to 47.65 gallons
c :a unit for vessels equal to 10 cubic feet

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Origin and Etymology of koku

Japanese

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