刀

dāo

1. knife; blade; single-edged sword; cutlass (CL:把[ba3])
2. (slang) (loanword) dollar
3. classifier for sets of one hundred sheets (of paper)
4. classifier for knife cuts or stabs
5. (Internet slang) to bargain; to ask for a small discount (esp. on second-hand marketplaces)
6. (Internet slang) to knife (sb) (often used hyperbolically, as in 想刀他[xiang3 dao1 ta1] "I could kill him!")

Dāo name

1. surname Dao