48 entries under noun topic. ×
| square(adjective, form, square, angularity) | |
| quadrangle(form, figure, shape, angularity) | |
| rectangle(square, diamond, angularity, four) | |
| diamond(adjective, form, angularity, oblong) | |
| four(adjective, four) | |
| parallelogram(form, shape, square, diamond) | |
| polygon(form, shape, angularity) | |
| tetragon | |
| foursome | |
| quad(adjective, four) | |
| quartet(adjective, four) | |
| rhombus(square, diamond, angularity, oblong) | |
| trapezoid | |
| triangle | |
| decagon | |
| heptagon | |
| hexagon | |
| octagon | |
| pentagon | |
| cube |
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| APA | Smart Define. (2015). quadrilateral thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/quadrilateral/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "quadrilateral thesaurus" https://smartdefine.org/quadrilateral/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2015, quadrilateral thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/quadrilateral/thesaurus/synonyms>. |
| MLA | Smart Define. "quadrilateral thesaurus" 14 April 2015. Web. 29 September 2026. <https://smartdefine.org/quadrilateral/thesaurus/synonyms> |