Correct

一诺千金

/ yī nuò qiānjīn / 
Strokes

Definition

a promise worth one thousand in gold (idiom); a promise that must be kept

Example

Definition

a promise that is worth a thousand ounces of gold; the once given promise is as good as a thousand taels—be true to one's words

1
Tā
他
shì
是
gè
个
yīnuòqiānjīn
一诺千金
de
的
rén
人
  
。

He is a man of his words.