Correct

了断

/ liǎoduàn / 
Strokes

Definition

to bring to a conclusion/to settle (a dispute)/to do away with (oneself)/to break off (a relationship)/resolution (of a problem)

Example

As a Verb

finish; settle; end; wind up

1
Zánmen
咱们
zhījiān
之间
yīqiè
一切
jiùcǐ
就此
liǎoduàn
了断
  
。

Everything is finished between us.

2
Shìqing
事情
yǐjīng
已经
liǎoduàn
了断
  
。

The matter has been settled.