HSK C7-9
Correct

朽

/ xiǔ / 
Strokes

Definition

rotten

Example

As a Verb
decay; rot
1
Mùtou
木头
yǐ
已
wánquán
完全
xiǔ
朽
le
了
  
。

The wood has rotted away completely.

As a Verb
wear away; efface; obliterate
As an Adjective
decrepit; senile