一刀两断 (yī dāo liǎng duàn): Three Meanings, Variant and Examples

The context chooses among three senses

The simplified form is 一刀两断; traditional is 一刀兩斷. The dictionary reading is yī dāo liǎng duàn. Its short entry records three meanings: a literal cut into two, figuratively severing a relationship, and acting decisively. [1]

“Make a clean break” fits a relationship context. “Act decisively” can fit the third sense. Neither translation explains every sentence containing the expression. First identify what is being cut off, or what choice is being made.

A sense-selection table keeps the object visible

The dictionary’s cited literary contexts differ. This table describes the lexical distinctions; it is not a reconstruction of a single origin story. A figurative decision does not require a physical cutting action.

一刀两段 is a recorded alternative

The consulted entries also record 一刀兩段, simplified 一刀两段, with the same yī dāo liǎng duàn reading and corresponding senses. [1, 2] 段 and 断/斷 differ in writing here, but these entries do not establish separate relationship outcomes.

Keep the variant beside the main form in your vocabulary notes. If a literary sentence uses 段, interpret its object and surrounding scene rather than assuming the spelling forces the relationship sense.

Two original sentences make the figurative context explicit

The examples are fictional language-learning situations.

小说里的两位合伙人决定不再合作，从此一刀两断。

“The two partners in the novel decide to stop working together and make a clean break.” The ended partnership supplies the connection. This is a narrative description, not advice about a reader’s own relationships.

争论了几轮后，她终于一刀两断，定下方案，不再来回改选。

“After several rounds of discussion, she finally settles on a plan decisively instead of changing her selection back and forth.” The object is the choice of plan. The sentence supplies no ended personal relationship.

A break differs from reunion or a surviving connection

破镜重圆 describes reunion after a break. In a narrative, 一刀两断 can describe the earlier separation and 破镜重圆 a later reunion if the story actually supplies both events. Do not let either expression invent an ending.

藕断丝连 describes an interrupted connection with something still linking the parties. In a relationship sentence, 一刀两断 instead foregrounds a clean severing. The relevant comparison is what remains connected, not how forceful the words sound.

Choose the sense supplied by the action

Original exercise: A fictional editor chooses one of two cover designs after discussion and keeps that choice. No collaboration ends. Which reading of 一刀两断 fits if the narrator uses it here?

1. Decisive selection.
2. A relationship has necessarily ended.