- 海平面 hǎipíngmiàn sea level
- 平面图 píngmiàntú plana two-dimensional diagram or floor plan of a building or area
- 水平面 shuǐpíngmiàn horizontal planea flat surface perpendicular to the direction of gravity or parallel to the horizon
- 平面镜 píngmiànjìng plane mirror(physics) plane mirror
- 平面几何 píngmiànjǐhé plane geometry
- 平面波 píngmiànbō plane wavea plane wave
- 平面角 píngmiànjiǎo plane angle
- 复平面 fùpíngmiàn complex plane
- 相平面 xiàngpíngmiàn phase planephase plane (math., ordinary differential equations)
- 切平面 qiēpíngmiàn tangent planetangent plane to a surface
- 平面设计 píngmiànshèjì graphic design
- 总平面图 zǒngpíngmiàntú site plangeneral layout or top-down plan of a construction site or architectural project
- 平面曲线 píngmiànqūxiàn plane curve(mathematics) a curve that lies entirely within a single plane
- 复数平面 fùshùpíngmiàn complex plane(math.) complex plane; Argand plane
- 基本多文种平面 jīběnduōwénzhǒngpíngmiàn basic multilingual planebasic multilingual plane (BMP)
- 超平面 chāopíngmiàn hyperplanehyperplane (mathematics)