/ˈkwɑːdræŋɡəl/
NOUN
A geometric figure with four straight sides and four angles; a four-sided polygon.
A closed plane figure consisting of four straight sides and four interior angles.
NOUN
A square or rectangular open space surrounded by buildings or walls, especially in a university, monastery, or historic complex.
An open central area enclosed by academic or institutional buildings, often serving as a place for gathering, walking, and outdoor activities.
The buildings or architectural structures that form the boundaries of an enclosed quadrangular courtyard.