HSK C5/W3
Correct

悉

/ xī / 
Strokes

Definition

in all cases/know

Example

As an Adjective

detailed

1
Zhùshì
注释
shén
甚
xī
悉
  
。

There were elaborate notes to the text.

As a Verb

specify; know the detail

2
Shū
书
bù
不
néng
能
xīyì
悉意
  
。

The letter could not convey all I feel.

3
Láihán
来函
jìngxī
敬悉
  
。

I've read your letter.

As a Verb

take out all that is available

As an Adverb

entirely; completely