The use of lines to describe an object is known as

The use of lines to describe an object is known as drawing. Drawing involves creating a two-dimensional representation of an object or scene using various techniques, such as shading, hatching, and cross-hatching. Lines are used to outline the shape of the object and to create depth and texture. Drawings can be done with a variety of materials, including pencils, pens, charcoal, and digital tools. Drawing is a fundamental skill in many art forms, including painting, illustration, and graphic design.