What is a synonym for depth in terms of measurements?

In the context of measurements, "depth" refers to the distance from the top surface to the bottom surface of an object or space. It is commonly used to describe a three-dimensional measurement that indicates how deep something is. Thickness, as a synonym for depth, specifically refers to the measurement of something from one side to another, or the measurement that reveals how much material or space is included in a given object, particularly in relation to layers or the interior dimensions of an object.

While width, height, and length are also dimensions used in measuring objects, they refer to different aspects. Width typically indicates how wide an object is from one side to another; height measures how tall an object is from bottom to top; and length usually refers to the longest dimension of an object. Therefore, thickness as a synonym closely relates to depth, making it the correct choice.