浴室
yūshì · HSK 7
bathroom
🛁🚿 浴室 = bathe (浴) + room (室) = bathroom
浴 carries the water radical 氵and means to bathe; 室 means room or chamber. Put them together and you get the room where you bathe.
室 — roof 宀 + arrive 至
A semantic compound: 宀 (roof/house) over 至 (to arrive). The image is a place one arrives at and stays in — an inner room. From 'inner chamber' the meaning broadened to 'room' generally, and by extension to specialized rooms like an office or laboratory.