- 正方形 zhèngfāngxíng squarea four-sided shape where all sides are equal length and all internal angles are right angles
- 正方体 zhèngfāngtǐ cubea regular hexahedron; a three-dimensional solid object bounded by six square faces, with three meeting at each vertex
- 正方向 zhèngfāngxiàng positive directionthe forward or positive direction; often used in mathematics
- 正方步 zhèngfāngbù measured stepsstately and dignified pace or square-stepping gait often used by officials or in traditional performance