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

研鑽[kensan] diligent study
鑽り火[kiribi] striking sparks with flint and steel or by rubbing sticks together (usu. to start a fire)
鑽孔機[sankouki] boring machine
鑽り出す[kiridasu] to quarry

鑽孔[sankou] boring
鑽る[kiru] to start a fire (with wood-wood friction or by striking metal against stone)
自己研鑽[jikokensan] self-improvement
火鑽り[hikiri] hand drilling (to start a fire)