A trapezoid line can be referred to as various synonyms, depending on the context it is used in. In the field of geometry, it may be called a trapezium line, which references the shape of the geometrical figure. In the context of engineering and architecture, it may be referred to as a sloping line, angled line, or a diagonal line. When speaking of art and design, a trapezoid line may be called an inclined line or a slanted line. Other synonymous terms may include ramped line, skewed line, or oblique line, depending on the angle and curve of the line.