一刀[ittou] sword
一刀彫り[ittoubori] one-knife carving
一刀両断[ittouryoudan] cutting in two with a single stroke
印刀[intou] seal-engraving knife
円刃刀[enjintou] round-edged scalpel

快刀[kaitou] (literary) sharp sword
快刀乱麻[kaitouranma] solving a problem swiftly and skillfully
懐刀[futokorogatana] confidant
儀刀[gitou] ceremonial sword
軍刀[guntou] saber

向こう疵[mukoukizu] frontal wound
疵口[kizuguchi] (opening of) a wound
疵つける[kizutsukeru] to wound
疵物[kizumono] defective article
疵薬[kizugusuri] salve

刀疵[katanakizu] sword wound
瑕疵[kashi] flaw
疵痕[kizuato] scar
疵付く[kizutsuku] to be wounded