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

一所懸命[isshokenmei] very hard
一生懸命[isshoukenmei] very hard
引っ懸ける[hikkakeru] to hang (something) on (something)
懸り[kakari] starting
懸る[kakaru] to take (a resource, e.g. time or money)

懸ける[kakeru] to hang (e.g. picture)
気懸かり[kigakari] anxiety
懸案[kenan] pending question
懸崖[kengai] overhanging cliff

火燵掛布[kotatsugake] cover for kotatsu
引っ掛る[hikkakaru] to be caught in
引っ掛ける[hikkakeru] to hang (something) on (something)
押掛ける[oshikakeru] to intrude on
押掛け客[oshikakekyaku] uninvited guest

下掛る[shimogakaru] to talk about indecent things
下駄掛け[getagake] wearing wooden clogs
夏掛け[natsugake] summer-use futon
掛り[kakari] starting
掛かり合う[kakariau] to have dealings with