屠刀

butcher's knife / abattoir hatchet

surname Tu

to slaughter (animals for food) / to massacre

knife / blade / single-edged sword / cutlass / CL:把[ba3] / (slang) dollar (loanword) / classifier for sets of one hundred sheets (of paper) / classifier for knife cuts or stabs

lay down butcher's knife, become a Buddha on the spot (idiom); instant rehabilitation / to repent and be absolved of one's crimes