研究室

N4 研究 kenkyuu research, study, investigation N1 研ぐ togu to sharpen, to grind, to polish N1 究極 kyuukyoku ultimate, final, eventual N1 浴室 yokushitsu bathroom, bath N1 控室 hikaeshitsu waiting room N2 ～室 ～shitsu counter for room N2 温室 onshitsu greenhouse N2 研修 kenshuu training N2 室～ shitsu～ room

N4 研 ken / to.gu polish, study of, sharpen N4 究 kyuu, ku / kiwa.meru research, study, recherche N4 室 shitsu / muro room, apartment, chamber