皇室
huángshì · HSK 7
royalty
👑 皇室 = 皇 emperor + 室 room/house = the emperor's house, the royal family
皇 means emperor or imperial; 室 originally means room or chamber and extends to house or household. Together they name the imperial household, the royal family. The same 室 shows up in 教室 classroom and 卧室 bedroom.
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.