A four-sided polygon, especially a rectangle or square.

An area or courtyard that is enclosed by buildings.

चारों तरफ इमारतों से घिरा आँगन

English Usage: Students gathered in the quadrangle to enjoy the sunny weather.

Hindi Usage: छात्र धूप वाले मौसम का आनंद लेने के लिए चतुर्भुज में इकट्ठा हुए।