noun
1 to (unit of volume, approx. 18 litres)
Traditional Japanese unit of volume, equal to 10 升 (shō) or about 18.039 litres. Still used in contexts like sake brewing.
一斗は約十八リットルです。
One to is about 18 litres.
酒蔵では一斗単位で仕込むことがある。
In sake breweries, they sometimes brew in units of one to.