HSK 4 HSK C3/W2/V3
Correct

刀

/ dāo / 
Strokes

Definition

knife/blade/single-edged sword/cutlass/CL:把[bǎ]/(slang) dollar (loanword)/classifier for sets of one hundred sheets (of paper)/classifier for knife cuts or stabs

Example

As a Noun

knife; sword

1
Gāmǎdāo
伽马刀

gamma knife

2
Yī
一
bǎ
把
dāo
刀

a knife

As a Noun

knife-shaped thing

3
Shuāng
双
dāo
刀
diànzhá
电闸

double-point switch

As a Measure word

a hundred sheets (of paper)

4
Yī
一
dāo
刀
zhǐ
纸

a hundred sheets of paper