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

下剃り[shitazori] barber's apprentice
剃り捨てる[sorisuteru] to cut off the hair
剃上げ額[suriagebitai] high and broad forehead
剃刀[kamisori] razor
剃刀研ぎ[kamisoritogi] one who sharpens razors

剃刀触[kamisorikabure] razor rash
剃刀砥[kamisorido] razor strop
剃刀負[kamisorimake] razor rash
剃髪[teihatsu] tonsure
電気剃刀[denkikamisori] electric razor

ジェット推進研究所[jettosuishinkenkyuusho] Jet Propulsion Laboratory
観察的研究[kansatsutekikenkyuu] observational study
基礎研究[kisokenkyuu] basic research
客員研究員[kyakuinkenkyuuin] visiting researcher
共同研究[kyoudoukenkyuu] collaborative research

研学[kengaku] study
研究[kenkyuu] study
研究チーム[kenkyuuchiimu] research team
研究員[kenkyuuin] researcher
研究会[kenkyuukai] research society