开刀

开刀	kāi dāo	(of a surgeon) to perform an operation / (of a patient) to have an operation / to decapitate / to behead / to single out as a point of attack
开	kāi	to open (transitive or intransitive) / (of ships, vehicles, troops etc) to start / to turn on; to put in operation; to operate; to run / to boil / to write out (a prescription, check, invoice etc) / (directional complement) away; off / carat (gold) / abbr. for Kelvin, 开尔文 / abbr. for 开本, book format
刀	Dāo	surname Dao
刀	dāo	knife / blade / single-edged sword / cutlass / CL:把 / (slang) dollar (loanword) / classifier for sets of one hundred sheets (of paper) / classifier for knife cuts or stabs