Length converter to cm. a piece of something…. In two-dimensional (2D) shapes, only length and width are used, while three-dimensional (3D) shapes include height as well. . Length is the measure of one spatial dimension, whereas area is a measure of two dimensions (length squared) and volume is a measure of three dimensions (length cubed). LENGTH definition: 1. the measurement of something from end to end or along its longest side: 2. Length is the measurement that describes how long an object is. Length definition: the longest extent of anything as measured from end to end. Learn more. Jul 23, 2025 · Length, width, and height are the three main dimensions of a shape. Learn the units and methods for measuring length in detail! The length of an event, activity, or situation is the period of time from beginning to end for which something lasts or during which something happens. Jul 23, 2025 · Length, width, and height are the three main dimensions of a shape. It is the distance from end to end. See examples of LENGTH used in a sentence. The meaning of LENGTH is the longer or longest dimension of an object. How to use length in a sentence. Length is the longest side, width is the shorter side, and height is the vertical distance. n8oc bcbfh 6eimxy ia jpj273 nm0zqjawg 561 wk5rt wwhb7 qwi7