Correct
立冬
/ lìdōng /
Strokes
Definition
Lidong or Start of Winter, 19th of the 24 solar terms 二十四节气 7th-21st November
Example
As a Verb
(of winter) begin
1
Lì
立
le
了
dōng
冬
,
tiānqì
天气
jiù
就
kāishǐ
开始
biàn
变
lěng
冷
le
了
。
When winter sets in, it will become colder and colder.
As a Noun
Beginning of Winter ［beginning of the 19th of the 24 solar terms］
As a Noun
Beginning-of-Winter Day ［falling on Nov 7 or 8］