Translation guide
The act of dividing something into two equal parts, or the point where this division occurs. In Japanese, this concept is expressed through specific verbs, nouns, and technical terms depending on the context, such as geometry, general division, or figurative use.
Expressing the action of cutting or dividing something into two equal halves.
The most common and versatile way to say 'to bisect' or 'divide into two equal parts'. Used for physical objects, quantities, and abstract things.
ケーキを二等分してください。
Please bisect the cake.
Find the point that bisects the line.
Also means 'to divide into two', but can imply a more general split, not necessarily equal. Often used in formal or written contexts.
May not always imply exact equality; 二等分する is clearer for equal halves.
国が二分された。
The country was bisected.
A casual, everyday phrase meaning 'to cut in half'. Suitable for cooking, crafts, etc.
リンゴを半分に切って。
Cut the apple in half.
Referring to the mathematical act of dividing a geometric element into two equal parts.
The standard term in geometry for bisecting lines, angles, etc.
角を二等分する線を引く。
Draw a line that bisects the angle.
Noun meaning 'bisector' (the line that bisects).
垂直二等分線を求めなさい。
Find the perpendicular bisector.
Referring to the exact point that divides something into two equal parts.
The midpoint or center point of a line segment or interval.
線分ABの中点をMとする。
Let M be the midpoint of segment AB.
Literally 'bisection point', used in technical geometry contexts.
この線の二等分点を計算する。
Calculate the bisection point of this line.
Using 'bisection' metaphorically, e.g., dividing a group, opinion, or path.
Commonly used for splitting groups, opinions, etc. into two opposing sides.
世論が二分されている。
Public opinion is bisected.
Emphatic, colloquial phrase meaning 'to split right in two'. Often used for dramatic effect.
その問題でチームが真っ二つに分かれた。
The team was bisected over that issue.
二等分する explicitly means 'divide into two equal parts', while 二分する can mean simply 'divide into two', not necessarily equal. In geometry, always use 二等分する for precision.