窗户
chuāng hu
window
CL:個|个[ge4],扇[shan4]
cave hole (穴) + sound chuāng (囱) + door (户) = window
A cave opening (穴) lets in light and air — that is the core of a window; 囱 lends the sound chuāng. 户 originally depicted a single door panel on its hinge, and together the two characters evoke an opening in the wall you pass light and air through.
请把窗户打开，房间里太热了。
qǐng bǎ chuāng hu dǎ kāi， fáng jiān lǐ tài rè le。
Please open the window, it is too hot in the room.
外面下雨了，你忘了关窗户吗？
wài miàn xià yǔ le， nǐ wàng le guān chuāng hu ma？
It is raining outside, did you forget to close the window?