noun
quarter; one-fourth
Used for dividing something into four equal parts; often appears in contexts like measurements, shares, or portions.
ケーキを四半分に切ってください。
Please cut the cake into quarters.
利益の四半分を寄付した。
They donated a quarter of the profits.
Compound of 四 (four), 半 (half), and 分 (part), literally 'four-half-part', meaning a quarter.