The word "coloring material" refers to any substance used for adding colors or pigments to a surface. It can be a drawing tool, art supply or any other material that creates colorful effects. Some synonyms for coloring material are pigment, dye, paint, crayon, marker, pastel, ink, chalk, and pencil. These can be used to bring out different shades, tones, and hues in a drawing, painting, or other artwork. Coloring materials are used by artists, designers, architects, and hobbyists to create visually appealing pieces of art or illustrations. The choice of coloring material depends on the specific purpose, medium, and surface being used.