Synonyms of the word

tetragon

• n. (geometry, rare) A quadrilateral.
• n. An aspect of two planets with regard to the Earth when they are distant from each other ninety degrees,…

polygon

• n. (geometry) A plane figure bounded by edges that are all straight lines.
• n. (geometry) The boundary of such a figure.
• n. (geometry, more generally) A figure comprising vertices and (not necessarily straight) edges, alternatingly.
• n. (geometry) Such a figure and its interior, taken as a whole.

quadrangle

• n. (geometry) A geometric shape with four angles and four straight sides; a four-sided polygon.
• n. A courtyard which is quadrangular.
• n. The buildings forming the border of such a courtyard.

quadrilateral

• n. A polygon with four sides.
• n. An area defended by four fortresses supporting each other.
• adj. having four sides.