1Division into equal parts; equal portions resulting from dividing something into equal shares.
ケーキを四等分に切って、みんなで分けた。
We cut the cake into four equal parts and shared it.
予算を等分して各部署に配分した。
The budget was divided equally and allocated to each department.
長さを等分するために定規とコンパスを使った。
I used a ruler and compass to divide the length into equal parts.