臨界 （リンカイ） boundary, (nuclear) criticality, critical (mass, pressure, temperature, state, point, etc.)

臨海 （リンカイ） coastal, seaside, oceanfront, maritime

意臨 （イリン） copying calligraphy without sticking to the model (calligraphy), copying freely

形臨 （ケイリン） copying calligraphy from a model

臨む （のぞむ） to look out on, to overlook, to front onto, to face (a situation, crisis, etc.), to meet (e.g. death), to be confronted by, to deal with (an issue), to attend (e.g. a function), to appear (e.g. in court), to be present at, to go to (e.g. a place), to take part in, to participate, to join