noun
top-hinged swinging window; awning window
A window that opens outward from the bottom, hinged at the top; often used for ventilation while keeping rain out.
この部屋には突上げ窓が付いていて、雨の日でも換気ができる。
This room has a top-hinged swinging window, so you can ventilate even on rainy days.
Compound of 突き上げ (pushing up) + 窓 (window), describing a window that is pushed up from the bottom to open.