お歯黒[ohaguro] tooth blackening
臼歯[kyuushi] molar
永久歯[eikyuushi] permanent tooth
奥歯[okuba] molars
下歯[shitaba] lower teeth

仮歯[kashi] false tooth
加工歯[kakoushi] dental bridge
義歯[gishi] artificial tooth
鋸歯[kyoshi] teeth of a saw
金歯[kinba] gold tooth

亜科[aka] subfamily
医科[ika] medical science
医科大学[ikadaigaku] medical school
家庭科[kateika] home economics
科名[kamei] family name

科する[kasuru] to inflict
科学[kagaku] science
科学院[kagakuin] science institute
科学技術[kagakugijutsu] science and technology

垂迹[suijaku] temporary manifestation by a buddha (in order to save people)
筆迹[hisseki] handwriting
真迹[shinseki] true autograph

事迹[jiseki] evidence
本地垂迹説[honjisuijakusetsu] manifestation theory (holding that Shinto gods are manifestations of buddhas)
迹門[shakumon] first half of the Lotus Sutra, in which the Buddha appears as a spatiotemporally restricted being