Correct

言定

/ yán dìng / 
Strokes

Example

As a Verb

agree on; settle

1
Tāmen
他们
zài
在
huìshàng
会上
yán
言
dìngxià
定下
gè
个
yuè
月
jìnxíng
进行
gǎigé
改革
  
。

They agreed on the meeting that the reform would be carried out next month.