Term: quadrilateral: a four-sided polygon
Broader: polygon: a closed plane figure bounded by straight sides | Unrelated: estuary: the wide part of a river where it nears the sea; fresh and salt water mix
Broader: polygon: a closed plane figure bounded by straight sides | Unrelated: tree surgeon: a specialist in treating damaged trees
Broader: polygon: a closed plane figure bounded by straight sides | Unrelated: first sergeant: a sergeant in the Army above the rank of staff sergeant and below master sergeant
Broader: polygon: a closed plane figure bounded by straight sides | Unrelated: consolidation: the act of combining into an integral whole
Broader: polygon: a closed plane figure bounded by straight sides | Unrelated: waste: any materials unused and rejected as worthless or unwanted
Broader: polygon: a closed plane figure bounded by straight sides | Unrelated: borderland: district consisting of the area on either side of a border or boundary of a country or an area
Broader: polygon: a closed plane figure bounded by straight sides | Unrelated: hydrobatidae: storm petrels
Broader: polygon: a closed plane figure bounded by straight sides | Unrelated: orgy: any act of immoderate indulgence
Broader: polygon: a closed plane figure bounded by straight sides | Unrelated: exposure: aspect resulting from the direction a building or window faces
Broader: polygon: a closed plane figure bounded by straight sides | Unrelated: foresail: the lowest sail on the foremast of a square-rigged vessel