U+25B1 "▱" White Parallelogram Unicode Character

U+25B1 "▱" White Parallelogram is a geometric symbol depicting the outline of a parallelogram with equal-length opposite sides and equal opposite angles, drawn in white or empty form as opposed to a filled shape. It is part of the Geometric Shapes block in Unicode and is used in technical contexts such as mathematics, geometry, or diagrams to represent the concept of a parallelogram without interior shading, often for labeling or indicating a specific shape in a figure. Its appearance can vary slightly depending on the font but consistently maintains the characteristic slanted rectangular form.